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python-kerberos vulnerable to KDC spoofing attacks

High severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Feb 23, 2024

Package

pip kerberos (pip)

Affected versions

<= 1.2.5

Patched versions

None

Description

The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad response), or have other unspecified impact by performing a man-in-the-middle attack.

References

Published by the National Vulnerability Database Aug 25, 2017
Published to the GitHub Advisory Database May 14, 2022
Reviewed Feb 23, 2024
Last updated Feb 23, 2024

Severity

High
8.1
/ 10

CVSS base metrics

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

Weaknesses

CVE ID

CVE-2015-3206

GHSA ID

GHSA-mffc-9gx5-99g3

Source code

Checking history
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