Cisco Security Advisory: Cisco IOS Software IPsec Vulnerability

2010 年 3 月 24 日 - ライター翻訳版
その他のバージョン: PDFpdf | 英語版 (2010 年 3 月 24 日) | フィードバック


Advisory ID: cisco-sa-20100324-ipsec

http://www.cisco.com/JP/support/public/ht/security/107/1076224/cisco-sa-20100324-ipsec-j.shtml

日本語による情報は、英語による原文の非公式な翻訳であり、英語原文との間で内容の齟齬がある場合には、英語原文が優先します。

Revision 1.0

For Public Release 2010 March 24 1600 UTC (GMT)


要約

不正な形式の Internet Key Exchange(IKE; インターネット キー エクスチェンジ)パケットによって、Cisco IOS ソフトウェアが稼働しているデバイスが再起動する場合があります。影響を受けるのは、Cisco IOS ソフトウェアが稼働している VPN Acceleration Module 2+(VAM2+)を搭載した Cisco 7200 シリーズおよび Cisco 7301 ルータのみです。シスコはこの脆弱性に対処する無償のソフトウェア アップデートをリリースしました。

このアドバイザリは http://www.cisco.com/JP/support/public/ht/security/107/1076224/cisco-sa-20100324-ipsec-j.shtml に掲載されます。

注:2010 年 3 月 24 日の Cisco IOS ソフトウェア セキュリティ アドバイザリ バンドル公開には 7 件の Security Advisory が含まれています。これらのアドバイザリはすべて Cisco IOS ソフトウェアの脆弱性に対処するものです。各アドバイザリには、そのアドバイザリで詳述された脆弱性を解決するリリースを記載しています。2010 年 3 月 24 日またはそれ以前に公開された全ての Cisco IOS ソフトウエアの脆弱性に対応したリリースについては、次のテーブルをご参照下さい。

http://www.cisco.com/JP/support/public/ht/security/107/1076221/cisco-sa-20100324-bundle-j.shtml

個々の公開リンクは、次のリンクにある「Cisco Event Response: Semiannual Cisco IOS Software Security Advisory Bundled Publication」内に掲載されています。

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar10.html

該当製品

脆弱性が存在する製品

この脆弱性の影響を受けるのは、VPN Acceleration Module 2+(VAM2+)を搭載した Cisco 7200 シリーズおよび Cisco 7301 ルータのみです。

暗号化エンジンの設定情報の要約を表示して、該当の機器に VAM が搭載され使用されているかどうかを確認するには、 次の例に示すように show crypto engine brief コマンドを使用します。

Router#show crypto engine brief
        crypto engine name:  Virtual Private Network (VPN) Module
        crypto engine type:  hardware
                     State:  Enabled 
                  Location:  slot 4
        VPN Module in slot:  4
              Product Name:  VAM2+ 
         Software Serial #:  55AA
                 Device ID:  001F - revision 0000
                 Vendor ID:  0000
               Revision No:  0x001F0000
              VSK revision:  0
              Boot version:  902
               DPU version:  0
               HSP version:  3.4(3) (PRODUCTION)
              Time running:  00:00:10
               Compression:  Yes
                       DES:  Yes
                     3 DES:  Yes
                   AES CBC:  Yes (128,192,256)
                  AES CNTR:  No
     Maximum buffer length:  4096
          Maximum DH index:  5120
          Maximum SA index:  5120
        Maximum Flow index:  10230

注:上記の例では、「Product Name」に VAM2+ が表示されていますが、これはルータに VAM2+ が搭載されていることを示しています。 「State」の箇所のキーワード Enabled は、VAM2+ がイネーブルで動作中であることを示しています。

IPsec を使用する場合、IKE はデフォルトでイネーブルになります。IKE が設定されている Cisco IOS デバイスは、NAT Traversal(NAT-T; NAT 通過)が設定されている場合は UDP ポート 500 または UDP ポート 4500 をリッスンし、Group Domain of Interpretation(GDOI)が設定されている場合は UDP ポート 848 または UDP ポート 4848 をリッスンします。次の出力は、UDP ポート 500 で リッスンするルータの例です。

    Router#show ip sockets 
    Proto    Remote      Port      Local       Port  In Out Stat TTY OutputIF
    ....
     17   --listen--          192.168.66.129    500   0   0   11   0 
    ....

Or

    Router#show udp
    Proto        Remote      Port      Local       Port  In Out  Stat TTY OutputIF
     17       --listen--          192.0.2.1         500   0   0  1011   0 
     17(v6)   --listen--          --any--           500   0   0 20011   0 
    Router#

シスコ製品で稼働している Cisco IOS ソフトウェア リリースを確認するには、デバイスにログインし show version コマンドを実行してシステム バナーを表示させます。「Cisco Internetwork Operating System Software」、「Cisco IOS Software」、あるいはこれらに類似するシステム バナーによってデバイスで Cisco IOS ソフトウェアが稼働していることを確認できます。 その後ろにイメージ名が括弧の間に表示され、続いてバージョンと Cisco IOS ソフトウェア リリース名が表示されます。他のシスコ デバイスでは、 show version コマンドがない場合や、表示が異なる場合があります。

次の例は、シスコ製品で Cisco IOS ソフトウェア リリース 12.3(26) が稼働し、インストールされているイメージ名が C2500-IS-L であることを示しています。

Router#show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by cisco Systems, Inc.
Compiled Mon 17-Mar-08 14:39 by dchih



!--- output truncated

次の例は、シスコ製品で Cisco IOS ソフトウェア リリース 12.4(20)T が稼働し、インストールされているイメージ名が C1841-ADVENTERPRISEK9-M であることを示しています。

Router#show version
Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 10-Jul-08 20:25 by prod_rel_team



!--- output truncated

Cisco IOS ソフトウェアのリリース命名規則の追加情報は、次のリンクの『White Paper: Cisco IOS Reference Guide』で確認できます。 http://www.cisco.com/web/about/security/intelligence/ios-ref.html

脆弱性が存在しない製品

Cisco IOS XE ソフトウェアおよび Cisco IOS XR ソフトウェアは、この脆弱性の影響を受けません。他のシスコ製品において、このアドバイザリの影響を受けるものは現在確認されていません。

詳細

IPsec は、IP パケットの強固な認証と暗号化を実現する IP のセキュリティ機能です。IKE は、IPsec 標準と組み合わせて使用する鍵管理プロトコルの標準です。

IKE は、Internet Security Association and Key Management Protocol(ISAKMP)の枠組み内で、Oakley および SKEME の鍵交換を実装しているハイブリッド プロトコルです (ISAKMP、Oakley、および SKEME は、IKE によって実装されるセキュリティ プロトコルです)。IKE の詳細については、次のリンクで確認できます。

http://www.cisco.com/en/US/docs/ios/sec_secure_connectivity/configuration/guide/sec_key_exch_ipsec.html

脆弱性は、IKE を実装した Cisco IOS ソフトウェアに存在します。この脆弱性では、不正形式のパケットによって、Cisco IOS ソフトウェアが稼働しているデバイスが再起動する場合があります。影響を受けるのは、Cisco IOS ソフトウェアが稼働している VPN Acceleration Module 2+(VAM2+)を搭載した Cisco 7200 シリーズおよび Cisco 7301 ルータのみです。

この脆弱性は Cisco Bug ID CSCtb13491 登録ユーザのみ)として文書化され、CVE ID CVE-2010-0578 が割り当てられています。

脆弱性スコアの詳細

シスコはこのアドバイザリでの脆弱性に対して Common Vulnerability Scoring System(CVSS)に基づいたスコアを提供しています。このセキュリティ アドバイザリでの CVSS スコアは CVSS バージョン 2.0 に基づいています。

CVSSは、脆弱性の重要度を示唆するもので、緊急性および対応の優先度を決定する手助けとなる標準ベースの評価法です。

シスコは基本評価スコア(Base Score)および現状評価スコア(Temporal Score)を提供しています。お客様はこれらを用いて環境評価スコア(Environmental Score)を算出し、個々のネットワークにおける脆弱性の影響度を導き出すことができます。

シスコ は次の URL にて CVSS に関する FAQ を提供しています。

http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html

また、シスコは個々のネットワークにおける環境影響度を算出する CVSS 計算ツールを次の URL にて提供しています。

http://tools.cisco.com/security/center/cvssCalculator.x

CSCtb13491 - Malformed IKE packet may cause reload

Calculate the environmental score of CSCtb13491

CVSS Base Score - 7.8

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

None

None

Complete

CVSS Temporal Score - 6.4

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

影響

この脆弱性が悪用されると、該当するデバイスが再起動する可能性があります。不正利用が繰り返されることにより、Denial of Service(DoS)状態が発生します。

ソフトウェアのバージョンおよび修正

ソフトウェアのアップグレードを検討する際には、 http://www.cisco.com/go/psirt/ および本アドバイザリ以降に公開のアドバイザリも参照して、起こりうる障害と完全なアップグレード ソリューションを判断してください。

いずれの場合も、アップグレードする機器に十分なメモリがあること、および現在のハードウェアとソフトウェアの構成が新しいリリースで引き続き適切にサポートされていることの確認を十分に行ってください。情報が不明確な場合は、Cisco Technical Assistance Center(TAC)もしくは契約しているメンテナンス プロバイダーにお問い合わせください。

Cisco IOS ソフトウェア テーブル(下記)の各行は Cisco IOS のリリース トレインを示します。あるリリース トレインが脆弱である場合、修正を含む最初のリリースは、表の「First Fixed Release」列に示されます (入手可能予想日が示される場合もあります)。「Bundle First Fixed Release」列は、この Cisco IOS セキュリティ アドバイザリ バンドル公開で公開済みである全ての脆弱性についての修正を含む最初リリースを示しています。可能であれば、入手可能な最新のリリースにアップグレードすることを推奨します。

Major Release

Availability of Repaired Releases

Affected 12.0-Based Releases

First Fixed Release for this Advisory

First Fixed Release for all Advisories in 24 March 2010 Bundle Publication

There are no affected 12.0 based releases

Affected 12.1-Based Releases

First Fixed Release for this Advisory

First Fixed Release for all Advisories in 24 March 2010 Bundle Publication

There are no affected 12.1 based releases

Affected 12.2-Based Releases

First Fixed Release for this Advisory

First Fixed Release for all Advisories in 24 March 2010 Bundle Publication

12.2

Not Vulnerable

Not Vulnerable

12.2B

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2BC

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2BW

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2BX

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2BY

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2BZ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2CX

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2CY

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2CZ

Not Vulnerable

Vulnerable; migrate to any release in 12.2SRE

12.2DA

Not Vulnerable

Not Vulnerable

12.2DD

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2DX

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2EW

Not Vulnerable

Not Vulnerable

12.2EWA

Not Vulnerable

Not Vulnerable

12.2EX

Not Vulnerable

Releases up to and including 12.2(37)EX are not vulnerable.

Releases 12.2(44)EX and later are not vulnerable; first fixed in 12.2SE

12.2EY

Not Vulnerable

Releases prior to 12.2(37)EY are vulnerable, release 12.2(37)EY and later are not vulnerable

12.2EZ

Not Vulnerable

Not Vulnerable

12.2FX

Not Vulnerable

Not Vulnerable

12.2FY

Not Vulnerable

Not Vulnerable

12.2FZ

Not Vulnerable

Not Vulnerable

12.2IRA

Not Vulnerable

Vulnerable; first fixed in 12.2SRC

12.2IRB

Not Vulnerable

Vulnerable; first fixed in 12.2SRC

12.2IRC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IRD

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXA

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXB

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXD

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXE

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXF

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXG

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2IXH

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2JA

Not Vulnerable

Releases up to and including 12.2(4)JA1 are not vulnerable.

12.2JK

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2MB

Not Vulnerable

Not Vulnerable

12.2MC

Not Vulnerable

Vulnerable; first fixed in 12.4

12.2MRA

Not Vulnerable

Not Vulnerable

12.2S

Not Vulnerable

Releases prior to 12.2(30)S are vulnerable, release 12.2(30)S and later are not vulnerable;

12.2SB

Releases prior to 12.2(33)SB5 are vulnerable, release 12.2(33)SB5 and later are not vulnerable; migrate to any release in 12.2SRE

Releases up to 12.2(31)SB18 are not vulnerable.

12.2(33)SB8

12.2(31)SB18; Available on 24-MAR-10

12.2SBC

Not Vulnerable

Vulnerable; migrate to any release in 12.2SRE

12.2SCA

Vulnerable; first fixed in 12.2SCB

Vulnerable; first fixed in 12.2SCB

12.2SCB

12.2(33)SCB6

12.2(33)SCB6

12.2SCC

12.2(33)SCC1

12.2(33)SCC1

12.2SCD

Not Vulnerable

Not Vulnerable

12.2SE

Not Vulnerable

12.2(50)SE4; Available on 25-MAR-10

12.2SEA

Not Vulnerable

Not Vulnerable

12.2SEB

Not Vulnerable

Not Vulnerable

12.2SEC

Not Vulnerable

Not Vulnerable

12.2SED

Not Vulnerable

Vulnerable; first fixed in 12.2SE

12.2SEE

Not Vulnerable

Vulnerable; first fixed in 12.2SE

12.2SEF

Not Vulnerable

Not Vulnerable

12.2SEG

Not Vulnerable

Releases prior to 12.2(25)SEG4 are vulnerable, release 12.2(25)SEG4 and later are not vulnerable; first fixed in 12.2SE

12.2SG

Not Vulnerable

Releases up to 12.2(31)SG1 are not vulnerable; releases 12.2(40)SG and later are not vulnerable.

12.2SGA

Not Vulnerable

Not Vulnerable

12.2SL

Not Vulnerable

Not Vulnerable

12.2SM

Not Vulnerable

Not Vulnerable

12.2SO

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2SQ

Not Vulnerable

Not Vulnerable

12.2SRA

Releases prior to 12.2(33)SRA6 are vulnerable, release 12.2(33)SRA6 and later are not vulnerable; migrate to any release in 12.2SRB

Vulnerable; first fixed in 12.2SRD

12.2SRB

Not Vulnerable

Vulnerable; first fixed in 12.2SRD

12.2SRC

Not Vulnerable

12.2(33)SRC5

12.2SRD

Not Vulnerable

12.2(33)SRD3

12.2SRE

Not Vulnerable

Not Vulnerable

12.2STE

Not Vulnerable

Not Vulnerable

12.2SU

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2SV

Not Vulnerable

Releases up to and including 12.2(18)SV2 are not vulnerable.

12.2SVA

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2SVC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2SVD

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2SVE

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2SW

Not Vulnerable

Releases up to and including 12.2(25)SW3 are not vulnerable.

Releases 12.2(25)SW12 and later are not vulnerable; first fixed in 15.0M

12.2SX

Not Vulnerable

Vulnerable; first fixed in 12.2SXF

12.2SXA

Not Vulnerable

Vulnerable; first fixed in 12.2SXF

12.2SXB

Not Vulnerable

Vulnerable; first fixed in 12.2SXF

12.2SXD

Not Vulnerable

Vulnerable; first fixed in 12.2SXF

12.2SXE

Not Vulnerable

Vulnerable; first fixed in 12.2SXF

12.2SXF

Not Vulnerable

12.2(18)SXF17a

12.2SXH

Not Vulnerable

12.2(33)SXH6

12.2SXI

Not Vulnerable

12.2(33)SXI2a

12.2(33)SXI3

12.2SY

Not Vulnerable

Vulnerable; migrate to any release in 12.2SRE

12.2SZ

Not Vulnerable

Vulnerable; migrate to any release in 12.2SRE

12.2T

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2TPC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2XA

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XB

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XC

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XD

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XE

Not Vulnerable

Not Vulnerable

12.2XF

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XG

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XH

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XI

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XJ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XK

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XL

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XM

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XN

Not Vulnerable

Releases prior to 12.2(33)XN1 are vulnerable, release 12.2(33)XN1 and later are not vulnerable; first fixed in 12.2SRC

12.2XNA

Please see Cisco IOS-XE Software Availability

Please see Cisco IOS-XE Software Availability

12.2XNB

Please see Cisco IOS-XE Software Availability

Please see Cisco IOS-XE Software Availability

12.2XNC

Please see Cisco IOS-XE Software Availability

Please see Cisco IOS-XE Software Availability

12.2XND

Please see Cisco IOS-XE Software Availability

Please see Cisco IOS-XE Software Availability

12.2XNE

Please see Cisco IOS-XE Software Availability

Please see Cisco IOS-XE Software Availability

12.2XNF

Please see Cisco IOS-XE Software Availability

Please see Cisco IOS-XE Software Availability

12.2XO

Not Vulnerable

Not Vulnerable

12.2XQ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XR

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XS

Not Vulnerable

Not Vulnerable

12.2XT

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XU

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XV

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2XW

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2YA

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2YB

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YD

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YE

Not Vulnerable

Not Vulnerable

12.2YF

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YG

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YH

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YJ

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YK

Not Vulnerable

Not Vulnerable

12.2YL

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YM

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2YN

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YO

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YP

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2YQ

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YR

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YS

Not Vulnerable

Not Vulnerable

12.2YT

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YU

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YV

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YW

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YX

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YY

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2YZ

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZA

Not Vulnerable

Vulnerable; first fixed in 12.2SXF

12.2ZB

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZD

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZE

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2ZF

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2ZG

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2ZH

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.2ZJ

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZL

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZP

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZU

Not Vulnerable

Vulnerable; first fixed in 12.2SXH

12.2ZX

Not Vulnerable

Vulnerable; migrate to any release in 12.2SRE

12.2ZY

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.2ZYA

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

Affected 12.3-Based Releases

First Fixed Release for this Advisory

First Fixed Release for all Advisories in 24 March 2010 Bundle Publication

12.3

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3B

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3BC

Not Vulnerable

Vulnerable; first fixed in 12.2SCB

12.3BW

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3EU

Not Vulnerable

Not Vulnerable

12.3JA

Not Vulnerable

Releases prior to 12.3(11)JA5 are vulnerable, release 12.3(11)JA5 and later are not vulnerable

12.3JEA

Not Vulnerable

Releases prior to 12.3(8)JEA4 are vulnerable, release 12.3(8)JEA4 and later are not vulnerable

12.3JEB

Not Vulnerable

Releases prior to 12.3(8)JEB2 are vulnerable, release 12.3(8)JEB2 and later are not vulnerable

12.3JEC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3JED

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3JK

Releases up to and including 12.3(2)JK3 are not vulnerable.

Releases 12.3(8)JK1 and later are not vulnerable; first fixed in 12.4

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3JL

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3JX

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3T

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3TPC

Releases up to and including 12.3(4)TPC11a are not vulnerable.

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3VA

Not Vulnerable

Not Vulnerable

12.3XA

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XB

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3XC

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XD

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XE

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; first fixed in 12.4

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XF

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3XG

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XI

Not Vulnerable

Releases prior to 12.3(7)XI11 are vulnerable, release 12.3(7)XI11 and later are not vulnerable

12.3XJ

Vulnerable; migrate to any release in 12.4XN

Vulnerable; first fixed in 12.4XR

12.3XK

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XL

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XQ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XR

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XS

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XU

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XW

Vulnerable; migrate to any release in 12.4XN

Vulnerable; first fixed in 12.4XR

12.3XX

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XY

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3XZ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YA

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YD

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YF

Vulnerable; migrate to any release in 12.4XN

Vulnerable; first fixed in 12.4XR

12.3YG

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YH

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YI

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YJ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YK

Releases prior to 12.3(11)YK1 are vulnerable, release 12.3(11)YK1 and later are not vulnerable.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YM

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YQ

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YS

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YT

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YU

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.3YX

Vulnerable; migrate to any release in 12.4XN

Vulnerable; first fixed in 12.4XR

12.3YZ

Releases up to and including 12.3(11)YZ1 are not vulnerable.

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.3ZA

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Affected 12.4-Based Releases

First Fixed Release for this Advisory

First Fixed Release for all Advisories in 24 March 2010 Bundle Publication

12.4

12.4(25b)

15.0(1)M1

15.0(1)M2 ; Available on 26-MAR-10

12.4(25c)

15.0(1)M1

12.4GC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4JA

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4JDA

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4JDC

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4JDD

Not Vulnerable

12.4(10b)JDD1

12.4JHA

Not Vulnerable

Not Vulnerable

12.4JK

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4JL

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4JMA

Not Vulnerable

Releases prior to 12.4(3g)JMA2 are vulnerable, release 12.4(3g)JMA2 and later are not vulnerable

12.4JMB

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4JX

Not Vulnerable

Vulnerable; first fixed in 12.4JA

12.4MD

Not Vulnerable

12.4(24)MD

12.4MDA

Not Vulnerable

12.4(22)MDA2

12.4MR

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4SW

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4T

Releases prior to 12.4(15)T are vulnerable, release 12.4(15)T and later are not vulnerable

12.4(15)T12

12.4(20)T5

12.4(24)T3; Available on 26-MAR-10

12.4(22)T4

12.4XA

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XB

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XC

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XD

Vulnerable; migrate to any release in 15.0M

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XE

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XF

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XG

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XJ

Releases prior to 12.4(11)XJ4 are vulnerable, release 12.4(11)XJ4 and later are not vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XK

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XL

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4XM

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XN

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4XP

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4XQ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XR

Not Vulnerable

12.4(22)XR3

12.4XT

Releases prior to 12.4(11)XJ4 are vulnerable, release 12.4(11)XJ4 and later are not vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XV

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4XW

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XY

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4XZ

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4YA

Not Vulnerable

Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.

12.4YB

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4YD

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

12.4YE

Not Vulnerable

12.4(22)YE2

12.4(24)YE

12.4YG

Not Vulnerable

Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory

Affected 15.0-Based Releases

First Fixed Release for this Advisory

First Fixed Release for all Advisories in 24 March 2010 Bundle Publication

There are no affected 15.0 based releases

Affected 15.1-Based Releases

First Fixed Release for this Advisory

First Fixed Release for all Advisories in 24 March 2010 Bundle Publication

There are no affected 15.1 based releases

Cisco IOS-XE Software

IOS-XE Release

First Fixed Release

2.1.x

Not Vulnerable

2.2.x

Not Vulnerable

2.3.x

Not Vulnerable

2.4.x

Not Vulnerable

2.5.x

Not Vulnerable

2.6.x

Not Vulnerable

回避策

利用可能な回避策はありません。

修正済みソフトウェアの取得

シスコはこの脆弱性に対処する無償のソフトウェア アップデートを提供しています。ソフトウェアの導入を行う前にお客様のメンテナンス プロバイダーにご相談いただくか、ソフトウェアのフィーチャ セットの互換性およびお客様のネットワーク環境に特有の問題に関してご確認ください。

お客様がインストールしたりサポートを受けたりできるのは、ご購入いただいたフィーチャ セットに対してのみとなります。そのようなソフトウェア アップグレードをインストール、ダウンロード、アクセスまたはその他の方法で使用した場合、お客様は http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html または Cisco.com ダウンロード サイトの http://www.cisco.com/public/sw-center/sw-usingswc.shtml に説明のあるその他の条項に従うことに同意したことになります。

ソフトウェアのアップグレードに関し、psirt@cisco.com もしくは security-alert@cisco.com にお問い合せいただくことはご遠慮ください。

サービス契約をご利用のお客様

サービス契約をお持ちのお客様は、通常のアップデート チャネルからアップグレード ソフトウェアを入手してください。ほとんどのお客様は、シスコのワールドワイド Web サイト上のソフトウェア センター (http://www.cisco.com)からアップグレードを入手することができます。

サードパーティのサポート会社をご利用のお客様

シスコ パートナー、正規販売代理店、サービス プロバイダーなど、サードパーティのサポート会社と以前に契約していたか、または現在契約しており、その会社からシスコ製品の提供または保守を受けているお客様は、該当するサポート会社に連絡し、本脆弱性に関する適切な処置について指示と支援を受けてください。

回避策や修正の効果は、使用する製品、ネットワーク トポロジー、トラフィックの性質や組織の目的などのお客様の状況によって異なります。影響製品が多種多様であるため、回避策を実際に展開する前に、対象とするネットワークで適用する回避策が最適であるか、お客様のサービス プロバイダーやサポート会社にご相談ください。

サービス契約をご利用でないお客様

シスコから直接購入したがシスコのサービス契約をご利用いただいていない場合、また、サードパーティ ベンダーから購入したが修正済みソフトウェアを購入先から入手できない場合は、Cisco Technical Assistance Center(TAC)に連絡してアップグレードを入手してください。TAC の連絡先は次のとおりです。

  • +1 800 553 2447(北米内からのフリー ダイヤル)
  • +1 408 526 7209(北米以外からの有料通話)
  • 電子メール:tac@cisco.com

無償アップグレードの対象であることをご証明いただくために、製品のシリアル番号と、このお知らせの URL をご用意ください。サービス契約をご利用でないお客様に対する無償アップグレードは、TAC 経由でご要求いただく必要があります。

さまざまな言語向けの各地の電話番号、説明、電子メール アドレスなどの、この他の TAC の連絡先情報については、 http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html を参照してください。

不正利用事例と公式発表

Cisco PSIRT では、本アドバイザリに記載されている脆弱性の不正利用事例とその公表は確認しておりません。この脆弱性は、お客様からのお問い合わせへの対応の際に発見されました。

この通知のステータス:FINAL

本アドバイザリは無保証のものとしてご提供しており、いかなる種類の保証を示唆するものでもありません。本アドバイザリの情報およびリンクの使用に関する責任の一切はそれらの使用者にあるものとします。またシスコシステムズはいつでも本アドバイザリの変更や更新を実施する権利を有します。

後述する情報配信の URL を省略し、本アドバイザリの記述内容に関して単独の転載や意訳を実施した場合には、事実誤認ないし重要な情報の欠落を含む統制不可能な情報の伝搬が行われる可能性があります。

情報の配信

本アドバイザリは、次のシスコのワールドワイド Web サイト上に掲載されます。

http://www.cisco.com/JP/support/public/ht/security/107/1076224/cisco-sa-20100324-ipsec-j.shtml

ワールドワイド Web 以外にも、次の電子メールおよび Usenet ニュースの受信者向けに、この通知のテキスト版が Cisco PSIRT PGP キーによるクリア署名つきで投稿されています。

  • cust-security-announce@cisco.com
  • first-bulletins@lists.first.org
  • bugtraq@securityfocus.com
  • vulnwatch@vulnwatch.org
  • cisco@spot.colorado.edu
  • cisco-nsp@puck.nether.net
  • full-disclosure@lists.grok.org.uk
  • comp.dcom.sys.cisco@newsgate.cisco.com

このアドバイザリに関する今後の更新は、いかなるものもシスコのワールドワイド Web サイトに掲載される予定です。 しかしながら、前述のメーリングリストもしくは ニュースグループに対し 積極的に配信されるとは限りません。この問題に関心があるお客様は上記 URL にて最新情報を ご確認いただくことをお勧めいたします。

更新履歴

Revision 1.0

2010-March-24

Initial public release

シスコのセキュリティ手順

シスコ製品におけるセキュリティの脆弱性の報告、セキュリティ事故に関する支援、およびシスコからセキュリティ情報を入手するための登録方法について詳しく知るには、シスコ ワールドワイド Web サイトの http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html にアクセスしてください。このページには、シスコのセキュリティ通知に関してメディアが問い合わせる際の指示が掲載されています。すべてのシスコ セキュリティ アドバイザリは、 http://www.cisco.com/go/psirt/ で確認することができます。