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>> Cisco IOS TCLSH AAA Command Authorization Bypass Vulnerability

Title : Cisco IOS TCLSH AAA Command Authorization Bypass Vulnerability
VUPEN ID : VUPEN/ADV-2006-0337
CVE ID : CVE-2006-0485 - CVE-2006-0486
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2006-01-25


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Cisco IOS, which could be exploited by malicious users to bypass security restrictions and obtain elevated privileges. This flaw is due to an error in the Authentication, Authorization, and Accounting (AAA) command authorization feature that does not properly perform authorization checks on commands executed from the Tool Command Language (Tcl) exec shell, which could be exploited by authenticated users to bypass command authorization checks resulting in unauthorized privilege escalation.

Affected Products

Cisco IOS 12.4
Cisco IOS 12.3
Cisco IOS 12.2
Cisco IOS 12.1

Solution

Apply fixes :
http://www.cisco.com/warp/public/707/cisco-response-20060125-aaatcl.shtml

References

http://www.vupen.com/english/advisories/2006/0337
http://www.cisco.com/warp/public/707/cisco-response-20060125-aaatcl.shtml

Credits

Vulnerability reported by Nicolas Fischbach

ChangeLog

2006-01-25 : Initial release

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