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Improper Certificate Validation in Twisted

High severity GitHub Reviewed Published Aug 16, 2019 to the GitHub Advisory Database • Updated Aug 31, 2023

Package

pip twisted (pip)

Affected versions

< 19.7.0

Patched versions

19.7.0

Description

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.

References

Published by the National Vulnerability Database Jun 16, 2019
Reviewed Aug 12, 2019
Published to the GitHub Advisory Database Aug 16, 2019
Last updated Aug 31, 2023

Severity

High
7.4
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CVE ID

CVE-2019-12855

GHSA ID

GHSA-65rm-h285-5cc5

Source code

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