Vulnerability Details : CVE-2019-12855
In words.protocols.jabber.xmlstream in Twisted through 19.2.1, XMPP support did not verify certificates when used with TLS, allowing an attacker to MITM connections.
Products affected by CVE-2019-12855
- cpe:2.3:a:twisted:twisted:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-12855
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-12855
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
|
7.4
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
2.2
|
5.2
|
NIST |
CWE ids for CVE-2019-12855
-
The product does not validate, or incorrectly validates, a certificate.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-12855
-
https://usn.ubuntu.com/4308-1/
USN-4308-1: Twisted vulnerabilities | Ubuntu security notices
-
https://www.oracle.com/security-alerts/cpuapr2020.html
Oracle Critical Patch Update Advisory - April 2020
-
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html
[security-announce] openSUSE-SU-2019:2110-1: moderate: Security update f
-
https://github.com/twisted/twisted/pull/1147
[#9561] Check remote certificates for XMPP TLS by ralphm · Pull Request #1147 · twisted/twisted · GitHubPatch;Third Party Advisory
-
https://twistedmatrix.com/trac/ticket/9561
#9561 (XMPP's xmlstream is not checking TLS certificate) – TwistedVendor Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html
[security-announce] openSUSE-SU-2019:2068-1: moderate: Security update f
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
[SECURITY] Fedora 30 Update: python-twisted-19.2.1-3.fc30 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
[SECURITY] Fedora 30 Update: python-twisted-19.2.1-3.fc30 - package-announce - Fedora mailing-lists
-
https://usn.ubuntu.com/4308-2/
USN-4308-2: Twisted vulnerabilities | Ubuntu security notices | Ubuntu
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