CVE - CVE-2020-15260

CVE-ID
CVE-2020-15260	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/pjsip/pjproject/security/advisories/GHSA-8hcp-hm38-mfph URL:https://github.com/pjsip/pjproject/security/advisories/GHSA-8hcp-hm38-mfph GENTOO:GLSA-202107-42 URL:https://security.gentoo.org/glsa/202107-42 MISC:https://github.com/pjsip/pjproject/commit/67e46c1ac45ad784db5b9080f5ed8b133c122872 URL:https://github.com/pjsip/pjproject/commit/67e46c1ac45ad784db5b9080f5ed8b133c122872 MISC:https://github.com/pjsip/pjproject/pull/2663 URL:https://github.com/pjsip/pjproject/pull/2663
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20200625	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20200625)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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