Vulnerability DatabaseCVE-2020-12695
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CVE-2020-12695
June 08, 2020
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.
Related Resources (24)
http://packetstormsecurity.com/files/158051/CallStranger-UPnP-Vulnerability-Checker.html
https://www.kb.cert.org/vuls/id/339275
https://corelight.blog/2020/06/10/detecting-the-new-callstranger-upnp-vulnerability-with-zeek/
https://www.callstranger.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3SHL4LOFGHJ3DIXSUIQELGVBDJ7V7LB/
https://lists.debian.org/debian-lts-announce/2020/12/msg00017.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00013.html
https://github.com/yunuscadirci/CallStranger
https://www.debian.org/security/2020/dsa-4806
http://www.openwall.com/lists/oss-security/2020/06/08/2
https://usn.ubuntu.com/4494-1/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZDWHKGN3LMGSUEOAAVAMOD3IUIPJVOJ/
https://lists.debian.org/debian-lts-announce/2020/08/msg00011.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-12695
https://www.tenable.com/blog/cve-2020-12695-callstranger-vulnerability-in-universal-plug-and-play-upnp-puts-billions-of
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3SHL4LOFGHJ3DIXSUIQELGVBDJ7V7LB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQEYVY4D7LASH6AI4WK3IK2QBFHHF3Q2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MZDWHKGN3LMGSUEOAAVAMOD3IUIPJVOJ/
https://www.debian.org/security/2021/dsa-4898
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RQEYVY4D7LASH6AI4WK3IK2QBFHHF3Q2/
https://access.redhat.com/security/cve/CVE-2020-12695
https://security.alpinelinux.org/vuln/CVE-2020-12695
https://github.com/corelight/callstranger-detector
https://security-tracker.debian.org/tracker/CVE-2020-12695
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CVSS v4
Base Score:
9
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
HIGH
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
CVSS v2
Base Score:
7.8
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
COMPLETE
Weakness Type (CWE)
Incorrect Default Permissions
CWE-276
EPSS
Base Score:
3.03