Description
TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.
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 1
- Linux Kernel 2.2 - Predictable TCP Initial Sequence Number EDB-19522 · remote · Sep 27, 1999 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 8044 third-party-advisory
- 1033181 vdb-entry
- oval:org.mitre.oval:def:4922 vdb-entry signature
- 2682 vdb-entry
- CA-2001-09 third-party-advisory
- 57 third-party-advisory
- https://support.f5.com/csp/article/K19063943?utm_source=f5support&%3Butm_medium=RSS