Description
eStara SIP softphone allows remote attackers to cause a denial of service (crash) via a SIP OPTIONS request with a negative Expires field.
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
- eStara SoftPhone 3.0.1 SIP Packet - Multiple Malformed Field Denial of Service Vulnerabilities EDB-27211 · dos · Feb 14, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- estara-neg-integer-dos(24677) vdb-entry
- 18872 third-party-advisory
- ADV-2006-0607 vdb-entry
- 16629 vdb-entry
- 20060214 eStara SIP softphone several message-processing vulnerabilities mailing-list