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TITLE:
Cisco Products Denial of Service and Security Bypass Vulnerabilities

SECUNIA ADVISORY ID:
SA33749

VERIFY ADVISORY:
http://secunia.com/advisories/33749/

CRITICAL:
Less critical

IMPACT:
Security Bypass, DoS

WHERE:
>From local network

OPERATING SYSTEM:
Cisco 4400 Series Wireless LAN Controller
http://secunia.com/advisories/product/6036/
Cisco Catalyst 3750 Series Integrated Wireless LAN Controllers
http://secunia.com/advisories/product/13965/
Cisco 2100 Series Wireless LAN Controller
http://secunia.com/advisories/product/13963/
Cisco 2000 Series Wireless LAN Controller
http://secunia.com/advisories/product/6035/

SOFTWARE:
Cisco Catalyst 6500 Series Wireless Service Module (WiSM)
http://secunia.com/advisories/product/13964/

DESCRIPTION:
Some vulnerabilities have been reported in multiple Cisco Products,
which can be exploited by malicious people to cause a DoS (Denial of
Service) and by malicious users to bypass certain security
restrictions.

1) An unspecified error can be exploited to reload the device or to
render the web authentication functionality unusable.

2) An error when processing POST requests sent to the web
authentication login.html page can be exploited to trigger a device
reload.

The vulnerabilities affect Wireless LAN Controller software versions
4.1 and later on all platforms.

3) An error related to the TSEC driver can be exploited to render a
device unresponsive via specially crafted IP packets. 

This vulnerability affects software versions 4.1 and later for Cisco
4400 series Wireless LAN Controller, Cisco Catalyst 6500 / 7600
Wireless Service Module (WiSM), and the Cisco Catalyst 3750
Integrated Wireless LAN Controllers. 

4) An unspecified error can be exploited by unprivileged users to
gain full administrative rights to an affected system.

This vulnerability affects Wireless LAN Controller software version
4.2.173.0.

SOLUTION:
Update to a fixed version. Please see vendor advisory for a patch
matrix.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://www.cisco.com/warp/public/707/cisco-sa-20090204-wlc.shtml

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About:
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everybody keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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