Description
Cisco IOS 11.x and 12.0 through 12.2 allows remote attackers to cause a denial of service (traffic block) by sending a particular sequence of IPv4 packets to an interface on the device, causing the input queue on that interface to be marked as full.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 3
- Cisco IOS - using hping Remote Denial of Service EDB-62 · dos · Jul 22, 2003 · verified
- Cisco IOS - 'cisco-bug-44020.c' IPv4 Packet Denial of Service EDB-60 · dos · Jul 21, 2003 · verified
- Cisco IOS - IPv4 Packets Denial of Service EDB-59 · dos · Jul 18, 2003 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- VU#411332 third-party-advisory
- oval:org.mitre.oval:def:5603 vdb-entry signature
- CA-2003-17 third-party-advisory
- 20030717 IOS Interface Blocked by IPv4 Packet vendor-advisory
- CA-2003-15 third-party-advisory
- 20030718 (no subject) mailing-list