Title: Cisco Router Online Help Vulnerability
Severity: HIGH
Description:
Under certain revisions of IOS multiple Cisco routers have an information leakage vulnerability in their online help systems. In essence this vulnerability allows users who currently have access to the router at a low level of privilege (users without access to the 'enable' password) can use the help system to view information which should only in theory be available to an 'enabled' user. This information is comprised of access lists among other things. The help system itself does not list these items as being available via the 'show' commands yet none the less it will execute them.
The message which detailed this vulnerability to the Bugtraq mailing list is attached in the 'Credit' section of this vulnerability entry. It is suggested that you read it if this vulnerability affects your infrastructure.
Affected Products:
- Cisco 2500
- Cisco 2600
- Cisco 3600
- Cisco 4000
- Cisco 7200
- Cisco 7500
- Cisco IOS 11.1
- Cisco IOS 11.1.13
- Cisco IOS 11.1.13AA
- Cisco IOS 11.1.13CA
- Cisco IOS 11.1.13IA
- Cisco IOS 11.1.15CA
- Cisco IOS 11.1.16
- Cisco IOS 11.1.16AA
- Cisco IOS 11.1.16IA
- Cisco IOS 11.1.17CC
- Cisco IOS 11.1.17CT
- Cisco IOS 11.2
- Cisco IOS 11.2(17)
- Cisco IOS 11.2.10
- Cisco IOS 11.2.10BC
- Cisco IOS 11.2.4F1
- Cisco IOS 11.2.8
- Cisco IOS 11.2.8P
- Cisco IOS 11.2.8SA1
- Cisco IOS 11.2.8SA3
- Cisco IOS 11.2.8SA5
- Cisco IOS 11.2.9P
- Cisco IOS 11.2.9XA
- Cisco IOS 11.2P
- Cisco IOS 12.0
- Cisco IOS 12.0(5)T1
- Cisco IOS 12.0(7)T
- Cisco IOS 12.0(8)
- Cisco IOS 12.0(9)S
- Cisco IOS 12.0.1W
- Cisco IOS 12.0.1XA3
- Cisco IOS 12.0.1XB
- Cisco IOS 12.0.1XE
- Cisco IOS 12.0.2
- Cisco IOS 12.0.2XC
- Cisco IOS 12.0.2XD
- Cisco IOS 12.0.2XF
- Cisco IOS 12.0.2XG
- Cisco IOS 12.0.3T2
- Cisco IOS 12.0.4
- Cisco IOS 12.0.4S
- Cisco IOS 12.0.4T
- Cisco IOS 12.0.5
- Cisco IOS 12.0.6
- Cisco IOS 12.0.7
- Cisco IOS 12.0DB
- Cisco IOS 12.0S
- Cisco IOS 12.0T
- Cisco IOS 9.14
- Cisco Router 2500.0.0
- Cisco Router 2600.0.0
- Cisco Router 3600.0.0
- Cisco Router 4000.0.0
- Cisco Router 7200.0.0
- Cisco Router 7500.0.0
References:
- Cisco Systems: Cisco Product Security Incident Response
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