National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-3206 Detail

Current 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.

Source:  MITRE      Last Modified:  08/25/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2015-3206
Original release date:
08/25/2017
Last revised:
09/08/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
8.1 High
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
Exploitability Score:
2.2
CVSS Version 3 Metrics:
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):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
6.8 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
6.4
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.openwall.com/lists/oss-security/2015/05/21/3 Mailing List; Patch; Third Party Advisory External Source MLIST [oss-security] 20150521 CVE-2015-3206 python-kerberos: checkPassword() does not verify KDC authenticity
http://www.securityfocus.com/bid/74760 Third Party Advisory; VDB Entry External Source BID 74760
https://bugzilla.redhat.com/show_bug.cgi?id=1223802 Issue Tracking; Patch; Third Party Advisory External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=1223802
https://github.com/apple/ccs-pykerberos/issues/31 Issue Tracking; Patch; Third Party Advisory External Source CONFIRM https://github.com/apple/ccs-pykerberos/issues/31
https://pypi.python.org/pypi/kerberos Patch; Vendor Advisory External Source CONFIRM https://pypi.python.org/pypi/kerberos

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:python:pykerberos:-:*:*:*:*:*:*:*

Denotes Vulnerable Software
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