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Vulnerability Details : CVE-2016-6321

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.
Publish Date : 2016-12-09 Last Update Date : 2017-06-30
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Directory traversalBypass a restriction or similar
CWE ID 22

- Products Affected By CVE-2016-6321

# Product Type Vendor Product Version Update Edition Language
1 Application GNU TAR 1.14 Version Details Vulnerabilities
2 Application GNU TAR 1.15 Version Details Vulnerabilities
3 Application GNU TAR 1.15.1 Version Details Vulnerabilities
4 Application GNU TAR 1.15.90 Version Details Vulnerabilities
5 Application GNU TAR 1.15.91 Version Details Vulnerabilities
6 Application GNU TAR 1.16 Version Details Vulnerabilities
7 Application GNU TAR 1.16.1 Version Details Vulnerabilities
8 Application GNU TAR 1.17 Version Details Vulnerabilities
9 Application GNU TAR 1.18 Version Details Vulnerabilities
10 Application GNU TAR 1.19 Version Details Vulnerabilities
11 Application GNU TAR 1.20 Version Details Vulnerabilities
12 Application GNU TAR 1.21 Version Details Vulnerabilities
13 Application GNU TAR 1.22 Version Details Vulnerabilities
14 Application GNU TAR 1.23 Version Details Vulnerabilities
15 Application GNU TAR 1.24 Version Details Vulnerabilities
16 Application GNU TAR 1.25 Version Details Vulnerabilities
17 Application GNU TAR 1.26 Version Details Vulnerabilities
18 Application GNU TAR 1.27 Version Details Vulnerabilities
19 Application GNU TAR 1.27.1 Version Details Vulnerabilities
20 Application GNU TAR 1.28 Version Details Vulnerabilities
21 Application GNU TAR 1.29 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
GNU TAR 21

- References For CVE-2016-6321

http://lists.gnu.org/archive/html/bug-tar/2016-10/msg00016.html
MLIST [bug-tar] 20161029 Re: [Bug-tar] possible fixes for CVE-2016-6321
https://security.gentoo.org/glsa/201611-19
GENTOO GLSA-201611-19
https://sintonen.fi/advisories/tar-extract-pathname-bypass.proper.txt
http://www.securityfocus.com/bid/93937
BID 93937 GNU Tar CVE-2016-6321 Security Bypass Vulnerability Release Date:2016-11-24
http://www.ubuntu.com/usn/USN-3132-1
UBUNTU USN-3132-1
http://seclists.org/fulldisclosure/2016/Oct/96
FULLDISC 20161026 [CSS] POINTYFEATHER / tar extract pathname bypass (CVE-2016-6321)
http://seclists.org/fulldisclosure/2016/Oct/102
FULLDISC 20161030 [CSS] POINTYFEATHER / tar extract pathname bypass (CVE-2016-6321) - patch update
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa261c50f67165d CONFIRM
http://packetstormsecurity.com/files/139370/GNU-tar-1.29-Extract-Pathname-Bypass.html
http://www.debian.org/security/2016/dsa-3702
DEBIAN DSA-3702

- Metasploit Modules Related To CVE-2016-6321

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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