Short Name |
DOS:NETDEV:CISCO-HTTPD-DOS |
---|---|
Severity |
Major |
Recommended |
No |
Recommended Action |
Drop |
Category |
DOS |
Keywords |
Cisco IOS httpd DoS |
Release Date |
2003/04/22 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
This signature detects attempts to exploit a known vulnerability in Cisco IOS. Versions prior to 11.0, 11.2.8SA1, 12.1(1a)T1, and 12.1(1.3)T are susceptible. Attackers can remotely request URLs containing the %% string from the IP HTTP server, causing a denial of service condition.
A denial of service attack exists in versions of Cisco IOS, running on a variety of different router hardware. If the router is configured to have a web server running for configuration and other information a user can cause the router to crash.