Description
Multiple TCP/IP and ICMP implementations, when using Path MTU (PMTU) discovery (PMTUD), allow remote attackers to cause a denial of service (network throughput reduction for TCP connections) via forged ICMP ("Fragmentation Needed and Don't Fragment was Set") packets with a low next-hop MTU value, aka the "Path MTU discovery attack." NOTE: CVE-2004-0790, CVE-2004-0791, and CVE-2004-1060 have been SPLIT based on different attacks; CVE-2005-0065, CVE-2005-0066, CVE-2005-0067, and CVE-2005-0068 are related identifiers that are SPLIT based on the underlying vulnerability. While CVE normally SPLITs based on vulnerability, the attack-based identifiers exist due to the variety and number of affected implementations and solutions that address the attacks instead of the underlying vulnerabilities.
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.
Exploit-DB 2
- Microsoft Windows - Malformed IP Options Denial of Service (MS05-019) EDB-942 · dos · Apr 17, 2005 · verified
- Multiple Vendor ICMP Implementation - Malformed Path MTU Denial of Service EDB-25388 · dos · Apr 12, 2005 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- oval:org.mitre.oval:def:181 vdb-entry signature
- oval:org.mitre.oval:def:196 vdb-entry signature
- oval:org.mitre.oval:def:780 vdb-entry signature
- 13124 vdb-entry
- HPSBUX01164 vendor-advisory
- 20050412 Crafted ICMP Messages Can Cause Denial of Service vendor-advisory
- oval:org.mitre.oval:def:3826 vdb-entry signature
- http://www.gont.com.ar/drafts/icmp-attacks-against-tcp.html
- oval:org.mitre.oval:def:405 vdb-entry signature
- SSRT4743 vendor-advisory
- oval:org.mitre.oval:def:899 vdb-entry signature
- MS05-019 vendor-advisory
- 18317 third-party-advisory
- oval:org.mitre.oval:def:2188 vdb-entry signature
- oval:org.mitre.oval:def:651 vdb-entry signature
- http://www.uniras.gov.uk/niscc/docs/al-20050412-00308.html?lang=en
- 19 third-party-advisory
- 57 third-party-advisory
- oval:org.mitre.oval:def:5386 vdb-entry signature