Short Name |
DOS:NETDEV:ASCEND-KILL |
---|---|
Severity |
Major |
Recommended |
No |
Recommended Action |
Drop |
Category |
DOS |
Keywords |
Ascend Router |
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 software vulnerability in Lucent routers. Versions up to and including MAX Router 5.0, Pipeline Router 6.0, and TNT Router 2.0 are susceptible. Attackers can send malformed packets to UDP/9 (Discard), causing the software to crash.
Certain versions of Ascends (Lucent) router software listen on port 9 (UDP Discard). Ascend provides configuration tools for MAX and Pipeline routers that locate locally installed routers by broadcasting a specially formatted packet to UDP port 9. An attacker can send a similar but malformed packet to the same port that will cause MAX and Pipeline routers running certain software versions to crash.