PRIOn knowledge basePRION:CVE-2020-12695Open redirect
The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subscription request with a delivery URL on a different network segment than the fully qualified event-subscription URL, aka the CallStranger issue.
References
packetstormsecurity.com/files/158051/CallStranger-UPnP-Vulnerability-Checker.html
www.openwall.com/lists/oss-security/2020/06/08/2
corelight.blog/2020/06/10/detecting-the-new-callstranger-upnp-vulnerability-with-zeek/
github.com/corelight/callstranger-detector
github.com/yunuscadirci/CallStranger
lists.debian.org/debian-lts-announce/2020/08/msg00011.html
lists.debian.org/debian-lts-announce/2020/08/msg00013.html
lists.debian.org/debian-lts-announce/2020/12/msg00017.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3SHL4LOFGHJ3DIXSUIQELGVBDJ7V7LB/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZDWHKGN3LMGSUEOAAVAMOD3IUIPJVOJ/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQEYVY4D7LASH6AI4WK3IK2QBFHHF3Q2/
usn.ubuntu.com/4494-1/
www.callstranger.com
www.debian.org/security/2020/dsa-4806
www.debian.org/security/2021/dsa-4898
www.kb.cert.org/vuls/id/339275
www.tenable.com/blog/cve-2020-12695-callstranger-vulnerability-in-universal-plug-and-play-upnp-puts-billions-of
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