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| Subject: | OpenSER OSP Module remote code execution |
|---|---|
| Date: | Thu, 28 Dec 2006 13:22:38 +0100 |
Synopsis: OpenSER OSP Module remote code execution Product: OpenSER Version: <=1.1.0 Issue: ====== A critical security vulnerability has been found in OpenSER Open Settlement Protocol (OSP) module. OSP is an ETSI defined standard for Inter-Domain VoIP pricing,authorization and usage exchange. Details: ======== int validateospheader (struct sip_msg* msg, char* ignore1, char* ignore2) This following fuction suffers from buffer overflow vulnerability, which leads to memory corruption conditions. Due to memory corruption conditions remote code execution is possible. Affected Versions ================= OpenSER <= 1.1.0 Solution ========= Proper boundary checking. Exploitation ============ Exploitation might be conducted by preparing a specially crafted OSP header. Kind regards, Michał Bućko - sapheal Senior Security Specialist HACK.PL
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