Cisco IOS HTTP Router Management Service Malformed Request Denial Of Service Vulnerability

BID:10014

Info

Cisco IOS HTTP Router Management Service Malformed Request Denial Of Service Vulnerability

Bugtraq ID: 10014
Class: Failure to Handle Exceptional Conditions
CVE:
Remote: Yes
Local: No
Published: Oct 25 2000 12:00AM
Updated: Oct 25 2000 12:00AM
Credit: The vendor announced this vulnerability.
Vulnerable: Cisco IOS 12.1XP
Cisco IOS 12.1XL
Cisco IOS 12.1XJ
Cisco IOS 12.1XI
Cisco IOS 12.1XH
Cisco IOS 12.1XG
Cisco IOS 12.1XF
Cisco IOS 12.1XE
Cisco IOS 12.1XD
Cisco IOS 12.1XC
Cisco IOS 12.1XB
Cisco IOS 12.1XA
Cisco IOS 12.1T
Cisco IOS 12.1EC
Cisco IOS 12.1E
Cisco IOS 12.1DC
Cisco IOS 12.1DB
Cisco IOS 12.1DA
Cisco IOS 12.1AA
Cisco IOS 12.1
Cisco IOS 12.0XJ
Cisco IOS 12.0XH
Cisco IOS 12.0XE
Cisco IOS 12.0XA
Cisco IOS 12.0W5
Cisco IOS 12.0T
Not Vulnerable:

Discussion

Cisco IOS HTTP Router Management Service Malformed Request Denial Of Service Vulnerability

The HTTP router management service on Cisco IOS has been reported to be prone to a remote denial of service vulnerability. On Cisco IOS versions 12.0T and up, the "?" character when appended with a "/" character is not properly interpreted by the HTTP router management service and may cause the appliance to crash.

Exploit / POC

Cisco IOS HTTP Router Management Service Malformed Request Denial Of Service Vulnerability

The following proof of concept exploit has been supplied:

Solution / Fix

Cisco IOS HTTP Router Management Service Malformed Request Denial Of Service Vulnerability

Solution:
Cisco has released an advisory that details IOS versions and fixes for customers who may potentially be affected by this issue. Please see the referenced advisory for further information regarding obtaining and applying an appropriate update.

References

Cisco IOS HTTP Router Management Service Malformed Request Denial Of Service Vulnerability

References:
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