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CVE-2019-12855

Good to know:

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Date: June 16, 2019

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.

Language: Python

Severity Score

Related Resources (20)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ
https://nvd.nist.gov/vuln/detail/CVE-2019-12855
https://usn.ubuntu.com/4308-2/
https://www.oracle.com/security-alerts/cpuapr2020.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html
https://usn.ubuntu.com/4308-1/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html
https://security-tracker.debian.org/tracker/CVE-2019-12855
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
https://github.com/twisted/twisted
https://usn.ubuntu.com/4308-1
https://github.com/advisories/GHSA-65rm-h285-5cc5
https://usn.ubuntu.com/4308-2
https://access.redhat.com/security/cve/CVE-2019-12855
https://github.com/pypa/advisory-database/tree/main/vulns/twisted/PYSEC-2019-129.yaml
https://github.com/twisted/twisted/pull/1147
https://twistedmatrix.com/trac/ticket/9561
https://www.mend.io/vulnerability-database/CVE-2019-12855

Severity Score

Weakness Type (CWE)

Improper Certificate Validation

CWE-295

Top Fix

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Upgrade to version twisted - 19.7.0rc1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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