Cisco Security Advisory
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AV:N/AC:L/Au:N/C:N/I:N/A:C/E:F/RL:OF/RC:C
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Cisco Wireless LAN Controllers (WLC) Wireless Intrusion Prevention System (wIPS) contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.
The vulnerability is due to improper handling of crafted IP packets by the wIPS software component used by the Cisco WLC. An unauthenticated, remote attacker could exploit the vulnerability by sending crafted IP packets to a targeted device. A successful attack could allow the attacker to cause the targeted device to reload, resulting in a DoS condition for legitimate users.
Cisco has confirmed the vulnerability in a security advisory and released software updates.
To exploit this vulnerability, an attacker must submit crafted IP packets to the targeted device, likely requiring access to trusted, internal networks. This access requirement limits the likelihood of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
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Cisco has released a security advisory for Cisco bug ID CSCtx80743 at the following link: cisco-sa-20130123-wlc
Vulnerable Products
The following Cisco products are affected:
- Cisco WLC Software versions 7.3 prior to 7.3.101.0
- Cisco WLC Software versions 7.2 prior to 7.2.110.0
- Cisco WLC Software version 7.1, all releases
- Cisco WLC Software versions 7.0 prior to 7.0.240.0
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by these vulnerabilities.
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Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to monitor affected devices.
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Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via e-mail at tac@cisco.com.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.0 Initial Release NA Final 2013-Jan-23
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