Advisory ID: cisco-sa-20100609-axp
For Public Release 2010 June 9 16:00 UTC (GMT)
The Cisco Application Extension Platform contains a privilege
escalation vulnerability in the tech support diagnostic shell that may allow an
authenticated user to obtain administrative access to a vulnerable Cisco
Application Extension Platform module. Cisco has released software updates that address this vulnerability. There is no workaround for this
This advisory is posted at
The following products are affected by this vulnerability:
Cisco Application Extension Platform version 1.1
Cisco Application Extension Platform version 1.1.5 if upgraded from
The following products are not affected by this vulnerability:
Cisco Application Extension Platform version 1.0
Cisco Application Extension Platform version 1.1.5 if upgraded from
version 1.0 or a clean installation
Cisco Application Extension Platform version 1.1.7
Cisco Application Extension Platform version 1.5.x
No other Cisco products are currently known to be affected by this
The Cisco Application Extension Platform (AXP) allows third-party
applications to be hosted on Cisco Integrated Services Routers (ISR). A
privilege escalation vulnerability exists in command-line interface of the the
tech support diagnostic shell that may allow an authenticated user to obtain
complete administrative access to vulnerable Cisco AXP module. The tech support
shell is accessed using the techsupport support shell
Authenticated Cisco AXP users can use an application programming
interface (API) to execute commands on the Cisco ISR that is hosting the AXP
module. It may be possible for an AXP user to obtain sensitive configuration
information that allows the user to gain access to the ISR device. Cisco AXP
version 1.5 requires that a user be configured in the ISR configuration before
the AXP user can execute commands using the API.
This vulnerability is documented in Cisco Bug ID
registered customers only)
and has been assigned the Common
Vulnerabilities and Exposures (CVE) ID CVE-2010-1572.
Cisco has provided scores for the vulnerability in this advisory based
on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this
Security Advisory is done in accordance with CVSS version 2.0.
CVSS is a standards-based scoring method that conveys
vulnerability severity and helps determine urgency and priority of response.
Cisco has provided a base and temporal score. Customers can
then compute environmental scores to assist in determining the impact of the
vulnerability in individual networks.
Cisco has provided an FAQ to answer additional questions
regarding CVSS at:
Cisco has also provided a CVSS calculator to help compute
the environmental impact for individual networks at:
Successful exploitation of the vulnerability may allow an authenticated
user to obtain complete administrative access to a vulnerable Cisco Application
Extension Platform module.
When considering software upgrades, also consult
and any subsequent advisories to determine exposure and a complete upgrade
In all cases, customers should exercise caution to be
certain the devices to be upgraded contain sufficient memory and that current
hardware and software configurations will continue to be supported properly by
the new release. If the information is not clear, contact the Cisco Technical
Assistance Center (TAC) or your contracted maintenance provider for
There is no workaround for this vulnerability.
Cisco has released software updates that address this vulnerability. Prior to deploying software, customers should consult their
maintenance provider or check the software for feature set compatibility and
known issues specific to their environment.
Customers may only install and expect support for the
feature sets they have purchased. By installing, downloading, accessing or
otherwise using such software upgrades, customers agree to be bound by the
terms of Cisco's software license terms found at
or as otherwise set forth at Cisco.com Downloads at
Do not contact firstname.lastname@example.org or email@example.com
for software upgrades.
Cisco Application Extension Platform software version 1.1.7 and later
contain fixed software that corrects this vulnerability. Cisco Application
Extension Platform software version 1.1.7 can be downloaded at the following
Customers with contracts should obtain upgraded software through their
regular update channels. For most customers, this means that upgrades should be
obtained through the Software Center on Cisco's worldwide website at
Customers whose Cisco products are provided or maintained through prior
or existing agreements with third-party support organizations, such as Cisco
Partners, authorized resellers, or service providers should contact that
support organization for guidance and assistance with the appropriate course of
action in regards to this advisory.
The effectiveness of any workaround or fix is dependent on
specific customer situations, such as product mix, network topology, traffic
behavior, and organizational mission. Due to the variety of affected products
and releases, customers should consult with their service provider or support
organization to ensure any applied workaround or fix is the most appropriate
for use in the intended network before it is deployed.
Customers who purchase direct from Cisco but do not hold a Cisco
service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain software patches and bug fixes by contacting the Cisco Technical Assistance Center (TAC). TAC
contacts are as follows.
+1 800 553 2447 (toll free from within North America)
+1 408 526 7209 (toll call from anywhere in the world)
Customers should have the product serial number available and be prepared to provide the URL of this notice as evidence of entitlement to a software patch or bug fix. Customers without service contracts should request a software patch or bug fix through the TAC.
for additional TAC contact information, including localized telephone numbers,
and instructions and e-mail addresses for use in various languages.
The Cisco PSIRT is not aware of any public announcements or malicious
use of the vulnerability described in this advisory. This vulnerability was
reported to Cisco by n.runs AG.
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A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.
This advisory is posted on Cisco's worldwide website at:
In addition to worldwide web posting, a text version of
this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the
following e-mail and Usenet news recipients.
Future updates of this advisory, if any, will be placed on Cisco's
worldwide website, but may or may not be actively announced on mailing lists or
newsgroups. Users concerned about this problem are encouraged to check the
above URL for any updates.
Initial puiblic release.