Description
Multiple format string vulnerabilities in eStara SIP softphone allow remote attackers to cause a denial of service (hang) via SIP INVITE requests with format string specifiers in the SDP session description, as demonstrated using (1) the field name, (2) the o field (owner/creator and session identifier), or (3) the m field (media name and transport address).
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 SDP Message Handling Format String Denial of Service EDB-27210 · 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
- 18872 third-party-advisory
- ADV-2006-0607 vdb-entry
- estara-sdp-format-string(24678) vdb-entry
- 16629 vdb-entry
- 20060214 eStara SIP softphone several message-processing vulnerabilities mailing-list