Vulnerability  oval:org.mitre.oval:def:4905
Cisco IOS AAA Command Authorization Bypass via TCL Shell Reuse Vulnerability  

Certain Cisco IOS releases in 12.2S based trains with maintenance release number 25 and later, 12.3T based trains, and 12.4 based trains reuse a Tcl Shell process across login sessions of different local users on the same terminal if the first user does not use tclquit before exiting, which may cause subsequent local users to execute unintended commands or bypass AAA command authorization checks, aka Bug ID CSCef77770.
Create Date: 2008-05-26 Last Update Date: 2009-12-14

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: ios (from OVAL definitions)
  • Cisco IOS



The system is vulnerable
IF : All of the following are true Cisco ISO meets CVE-2006-0486
IF : IOS vulnerable versions
ios : version_test :  IOS vulnerable versions 
At least one of the objects listed below must exist on the system (Existence check)
major_release pattern match 12\.0(\(\d+\))?T\d*|12\.0(\(\d+\))?XH\d*|12\.0(\(\d+\))?XK\d*|12\.0(\(\d+\))?XL\d*|12\.0(\(\d+\))?XN\d*|12\.0(\(\d+\))?XR\d*|12\.1(\(\d+\))?\d*|12\.1(\(\d+\))?AA\d*|12\.1(\(\d+\))?E\d*|12\.1(\(\d+\))?EC\d*|12\.1(\(\d+\))?EZ\d*|12\.1(\(\d+\))?GA\d*|12\.1(\(\d+\))?GB\d*|12\.1(\(\d+\))?T\d*|12\.1(\(\d+\))?XA\d*|12\.1(\(\d+\))?XE\d*|12\.1(\(\d+\))?XH\d*|12\.1(\(\d+\))?XI\d*|12\.1(\(\d+\))?XJ\d*|12\.1(\(\d+\))?XL\d*|12\.1(\(\d+\))?XM\d*|12\.1(\(\d+\))?XP\d*|12\.1(\(\d+\))?XQ\d*|12\.1(\(\d+\))?XS\d*|12\.1(\(\d+\))?XT\d*|12\.1(\(\d+\))?XU\d*|12\.1(\(\d+\))?XV\d*|12\.1(\(\d+\))?XW\d*|12\.1(\(\d+\))?XY\d*|12\.1(\(\d+\))?XZ\d*|12\.1(\(\d+\))?YA\d*|12\.1(\(\d+\))?YB\d*|12\.1(\(\d+\))?YD\d*|12\.1(\(\d+\))?YE\d*|12\.1(\(\d+\))?YF\d*|12\.1(\(\d+\))?YH\d*|12\.1(\(\d+\))?YI\d*|12\.2(\(\d+\))?\d*|12\.2(\(\d+\))?B\d*|12\.2(\(\d+\))?BW\d*|12\.2(\(\d+\))?BY\d*|12\.2(\(\d+\))?DD\d*|12\.2(\(\d+\))?DX\d*|12\.2(\(\d+\))?MX\d*|12\.2(\(\d+\))?S\d*|12\.2(\(\d+\))?SU\d*|12\.2(\(\d+\))?SW\d*|12\.2(\(\d+\))?SXB\d*|12\.2(\(\d+\))?SXD\d*|12\.2(\(\d+\))?SXE\d*|12\.2(\(\d+\))?SXF\d*|12\.2(\(\d+\))?SZ\d*|12\.2(\(\d+\))?T\d*|12\.2(\(\d+\))?XA\d*|12\.2(\(\d+\))?XB\d*|12\.2(\(\d+\))?XC\d*|12\.2(\(\d+\))?XD\d*|12\.2(\(\d+\))?XG\d*|12\.2(\(\d+\))?XH\d*|12\.2(\(\d+\))?XJ\d*|12\.2(\(\d+\))?XK\d*|12\.2(\(\d+\))?XL\d*|12\.2(\(\d+\))?XM\d*|12\.2(\(\d+\))?XN\d*|12\.2(\(\d+\))?XQ\d*|12\.2(\(\d+\))?XS\d*|12\.2(\(\d+\))?XT\d*|12\.2(\(\d+\))?XU\d*|12\.2(\(\d+\))?XV\d*|12\.2(\(\d+\))?XW\d*|12\.2(\(\d+\))?YB\d*|12\.2(\(\d+\))?YC\d*|12\.2(\(\d+\))?YD\d*|12\.2(\(\d+\))?YE\d*|12\.2(\(\d+\))?YH\d*|12\.2(\(\d+\))?YK\d*|12\.2(\(\d+\))?YL\d*|12\.2(\(\d+\))?YM\d*|12\.2(\(\d+\))?YN\d*|12\.2(\(\d+\))?YT\d*|12\.2(\(\d+\))?YU\d*|12\.2(\(\d+\))?YW\d*|12\.2(\(\d+\))?YX\d*|12\.2(\(\d+\))?YY\d*|12\.2(\(\d+\))?YZ\d*|12\.2(\(\d+\))?ZB\d*|12\.2(\(\d+\))?ZC\d*|12\.2(\(\d+\))?ZD\d*|12\.2(\(\d+\))?ZE\d*|12\.2(\(\d+\))?ZF\d*|12\.2(\(\d+\))?ZH\d*|12\.2(\(\d+\))?ZJ\d*|12\.2(\(\d+\))?ZL\d*|12\.2(\(\d+\))?ZN\d*|12\.2(\(\d+\))?ZP\d*|12\.3(\(\d+\))?\d*|12\.3(\(\d+\))?B\d*|12\.3(\(\d+\))?T\d*|12\.3(\(\d+\))?XA\d*|12\.3(\(\d+\))?XB\d*|12\.3(\(\d+\))?XD\d*|12\.3(\(\d+\))?XE\d*|12\.3(\(\d+\))?XF\d*|12\.3(\(\d+\))?XG\d*|12\.3(\(\d+\))?XH\d*|12\.3(\(\d+\))?XI\d*|12\.3(\(\d+\))?XJ\d*|12\.3(\(\d+\))?XK\d*|12\.3(\(\d+\))?XM\d*|12\.3(\(\d+\))?XQ\d*|12\.3(\(\d+\))?XR\d*|12\.3(\(\d+\))?XW\d*|12\.3(\(\d+\))?XY\d*|12\.3(\(\d+\))?YA\d*|12\.3(\(\d+\))?YF\d*|12\.3(\(\d+\))?YG\d*|12\.3(\(\d+\))?YH\d*|12\.3(\(\d+\))?YI\d*|12\.3(\(\d+\))?YJ\d*|12\.3(\(\d+\))?YK\d*|12\.3(\(\d+\))?YM\d*|12\.3(\(\d+\))?YQ\d*|12\.3(\(\d+\))?YS\d*|12\.3(\(\d+\))?YT\d*|12\.3(\(\d+\))?YU\d*|12\.3(\(\d+\))?YX\d*|12\.4(\(\d+\))?\d*|12\.4(\(\d+\))?MR\d*|12\.4(\(\d+\))?T\d*|12\.4(\(\d+\))?XA\d*|12\.4(\(\d+\))?XB\d*
ios : version_state 
IF : NOT IOS vulnerable versions
ios : version_test :  IOS vulnerable versions 
At least one of the objects listed below must exist on the system (Existence check)
major_release pattern match 12\.4\(2\)T4|12\.2\(30\)S|12\.2\(17d\)SXB9|12\.2\(14\)S16|12\.3\(14\)T7|12\.3\(16\)|12\.2\(18\)SXF4|12\.2\(18\)SXD6|12\.3\(14\)YM6|12\.4\(7\)|12\.3\(7\)XI7|12\.2\(25\)S6|12\.1\(26\)E5|12\.3BC|12\.4\(3d\)|12\.2\(32\)|12\.2\(18\)S11|12\.4\(4\)T2|12\.2\(18\)SXE3|12\.2\(25\)SW5|12\.3\(11\)T10|12\.4\(6\)T
ios : version_state 
IF : config contains: aaa authorization commands .*tacacs+
ios : line_test :  config contains: aaa authorization commands .*tacacs+ 
At least one of the objects listed below must exist on the system (Existence check)
IOS : Command 
show running-config
show_subcommand (equals) show running-config
config_line pattern match aaa authorization commands .*tacacs\+
ios : line_state 

Quick Help

IOS Version Strings
IOS has an incredible number of different versions. So if you see a very long version string pattern it is not caused by an error; other than Cisco software development and versioning processes. Click here for more details about IOS versions
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Data Types
What is an Object?
What is a State?
What is a Test?
Other Help Topics
Regular Expression Patterns
Some object or state definitions are defined as regular expression patterns, you should interpret the regexp pattern while evaluating them.

OVAL Definitions By Referenced Objects

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