GNU tar 1.15.1/1.16 TAR Archive GNUTYPE_NAMES path traversal

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4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU tar 1.15.1/1.16. It has been rated as problematic. This vulnerability affects unknown code of the component TAR Archive Handler. Performing a manipulation of the argument GNUTYPE_NAMES results in path traversal. This vulnerability is cataloged as CVE-2006-6097. Furthermore, there is an exploit available. It is suggested to swap out the affected component for an alternative.

Detailsinfo

A vulnerability classified as problematic has been found in GNU tar 1.15.1/1.16. This affects an unknown function of the component TAR Archive Handler. The manipulation of the argument GNUTYPE_NAMES with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on integrity, and availability. The summary by CVE is:

GNU tar 1.16 and 1.15.1, and possibly other versions, allows user-assisted attackers to overwrite arbitrary files via a tar file that contains a GNUTYPE_NAMES record with a symbolic link, which is not properly handled by the extract_archive function in extract.c and extract_mangle function in mangle.c, a variant of CVE-2002-1216.

The bug was discovered 11/21/2006. The weakness was shared 11/28/2006 by Teemu Salmela (Full-Disclosure). The advisory is shared at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2006-6097 since 11/24/2006. The attack needs to approached within the local network. No form of authentication is needed for exploitation. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The exploit is shared for download at archives.neohapsis.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 67428 (Oracle Linux 3 / 4 : tar (ELSA-2006-0749)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115527 (Apple Mac OS X 10.4.9 and Security Update 2007-003 Not Installed (APPLE-SA-2007-03-13)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at savannah.gnu.org. The problem might be mitigated by replacing the product with as an alternative. The best possible mitigation is suggested to be establishing an alternative product. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (30472), Exploit-DB (29160), Tenable (67428), SecurityFocus (BID 21235†) and OSVDB (30721†). The entries VDB-2060, VDB-2621, VDB-2824 and VDB-2832 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.4
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67428
Nessus Name: Oracle Linux 3 / 4 : tar (ELSA-2006-0749)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57685
OpenVAS Name: Debian Security Advisory DSA 1223-1 (tar)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Alternative
Status: 🔍

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Patch: savannah.gnu.org

Timelineinfo

11/21/2006 🔍
11/21/2006 +0 days 🔍
11/21/2006 +0 days 🔍
11/24/2006 +3 days 🔍
11/24/2006 +0 days 🔍
11/28/2006 +4 days 🔍
11/28/2006 +0 days 🔍
11/29/2006 +0 days 🔍
12/01/2006 +2 days 🔍
12/10/2006 +9 days 🔍
12/20/2006 +10 days 🔍
01/25/2007 +36 days 🔍
07/12/2013 +2360 days 🔍
02/19/2025 +4240 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: archives.neohapsis.com
Researcher: Teemu Salmela
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-6097 (🔍)
GCVE (CVE): GCVE-0-2006-6097
GCVE (VulDB): GCVE-100-2709

OVAL: 🔍

X-Force: 30472
SecurityFocus: 21235 - GNU Tar GNUTYPE_NAMES Remote Directory Traversal Vulnerability
Secunia: 23911 - Avaya Products tar "GNUTYPES_NAMES" Record Type Security Issue, Moderately Critical
OSVDB: 30721 - GNU tar GNUTYPES_NAMES Record Type Traversal Arbitrary File Overwrite
SecurityTracker: 1017423
Vulnerability Center: 13236 - GNU tar 1.16, 1.15.1 Allows Overwriting of Files via a Crafted tar File, Medium
Vupen: ADV-2006-5102

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 11/29/2006 14:51
Updated: 02/19/2025 04:54
Changes: 11/29/2006 14:51 (104), 07/11/2019 15:16 (1), 02/19/2025 04:54 (21)
Complete: 🔍
Cache ID: 216:785:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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