CVE-2015-3206

HIGH

pykerberos - Improper Authentication via KDC Response Spoofing

Title source: llm

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 (5)

Core 5

Core References

Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2015/05/21/3

Issue Tracking, Patch, Third Party Advisory x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=1223802

Patch, Vendor Advisory x_refsource_confirm

https://pypi.python.org/pypi/kerberos

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/74760

Issue Tracking, Patch, Third Party Advisory x_refsource_confirm

https://github.com/apple/ccs-pykerberos/issues/31

Scores

CVSS v3 8.1

EPSS 0.0230

EPSS Percentile 81.2%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-287

Status published

Products (3)

apple/pykerberos

pypi/kerberos 0PyPI

pypi/pykerberos 0 - 1.1.6PyPI

Published Aug 25, 2017

Tracked Since Feb 18, 2026