cve-2020-15260
Vulnerability from cvelistv5
Published
2021-03-10 22:30
Modified
2024-08-04 13:15
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Summary
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In version 2.10 and earlier, PJSIP transport can be reused if they have the same IP address + port + protocol. However, this is insufficient for secure transport since it lacks remote hostname authentication. Suppose we have created a TLS connection to `sip.foo.com`, which has an IP address `100.1.1.1`. If we want to create a TLS connection to another hostname, say `sip.bar.com`, which has the same IP address, then it will reuse that existing connection, even though `100.1.1.1` does not have certificate to authenticate as `sip.bar.com`. The vulnerability allows for an insecure interaction without user awareness. It affects users who need access to connections to different destinations that translate to the same address, and allows man-in-the-middle attack if attacker can route a connection to another destination such as in the case of DNS spoofing.
References
security-advisories@github.comhttps://github.com/pjsip/pjproject/commit/67e46c1ac45ad784db5b9080f5ed8b133c122872Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/pjsip/pjproject/pull/2663Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/pjsip/pjproject/security/advisories/GHSA-8hcp-hm38-mfphPatch, Third Party Advisory
security-advisories@github.comhttps://security.gentoo.org/glsa/202107-42Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/pjsip/pjproject/commit/67e46c1ac45ad784db5b9080f5ed8b133c122872Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/pjsip/pjproject/pull/2663Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/pjsip/pjproject/security/advisories/GHSA-8hcp-hm38-mfphPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202107-42Third Party Advisory
Impacted products
Vendor Product Version
pjsip pjproject Version: <= 2.10
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