National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-6321 Detail

Description

Directory traversal vulnerability in the safer_name_suffix function in GNU tar 1.14 through 1.29 might allow remote attackers to bypass an intended protection mechanism and write to arbitrary files via vectors related to improper sanitization of the file_name parameter, aka POINTYFEATHER.

Source:  MITRE
Description Last Modified:  12/09/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa261c50f67165d Issue Tracking Patch
http://lists.gnu.org/archive/html/bug-tar/2016-10/msg00016.html Mailing List Vendor Advisory
http://packetstormsecurity.com/files/139370/GNU-tar-1.29-Extract-Pathname-Bypass.html Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2016/Oct/102 Mailing List Patch Third Party Advisory
http://seclists.org/fulldisclosure/2016/Oct/96 Mailing List Third Party Advisory
http://www.debian.org/security/2016/dsa-3702
http://www.securityfocus.com/bid/93937 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-3132-1
https://security.gentoo.org/glsa/201611-19
https://sintonen.fi/advisories/tar-extract-pathname-bypass.proper.txt Third Party Advisory

Technical Details

Vulnerability Type (View All)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-6321
NVD Published Date:
12/09/2016
NVD Last Modified:
06/30/2017