CVS up to 1.11.4 CVSROOT/passwd double free

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

A vulnerability was found in CVS up to 1.11.4. It has been rated as critical. Affected by this issue is an unknown part of the file CVSROOT/passwd. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Double-free vulnerability in CVS 1.11.4 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via a malformed Directory request, as demonstrated by bypassing write checks to execute Update-prog and Checkin-prog commands.

The bug was discovered 01/20/2003. The weakness was presented 12/18/2003 by Derek Price with ximbiot.com (Website). The advisory is available at ccvs.cvshome.org. This vulnerability is handled as CVE-2003-0015. The attack may be launched remotely. A simple authentication is necessary for exploitation. Technical details as well as a exploit are known.

The exploit is available at d2sec.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 13994 (Mandrake Linux Security Advisory : cvs (MDKSA-2003:009)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38281 (CVS Directory Request Double Free Heap Corruption Vulnerability).

Upgrading to version 1.11.11 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ccvs.cvshome.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 2010. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4449.

The vulnerability is also documented in the databases at X-Force (11108) and Tenable (13994). See 992, 1454, 2668 and 2995 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.6
VulDB Temp Score: 6.8
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CVSSv2info

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Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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

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Nessus ID: 13994
Nessus Name: Mandrake Linux Security Advisory : cvs (MDKSA-2003:009)
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OpenVAS ID: 53313
OpenVAS Name: Debian Security Advisory DSA 233-1 (cvs)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CVS 1.11.11
Patch: ccvs.cvshome.org

Snort ID: 2010
Snort Message: INDICATOR-COMPROMISE CVS double free exploit attempt response
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Suricata ID: 2102010
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TippingPoint: 🔍

McAfee IPS: 🔍
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Timelineinfo

01/20/2003 🔍
01/20/2003 +0 days 🔍
02/07/2003 +18 days 🔍
02/07/2003 +0 days 🔍
08/04/2003 +178 days 🔍
12/18/2003 +136 days 🔍
12/18/2003 +0 days 🔍
12/29/2003 +11 days 🔍
12/29/2003 +0 days 🔍
01/06/2004 +7 days 🔍
07/31/2004 +207 days 🔍
06/27/2019 +5444 days 🔍

Sourcesinfo

Advisory: ccvs.cvshome.org
Researcher: Derek Price
Organization: ximbiot.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2003-0015 (🔍)
X-Force: 11108 - CVS malformed directory name "double free" memory corruption, High Risk
Vulnerability Center: 1558 - CVS Double Free Heap Corruption, High
SecurityFocus: 9306 - CVS PServer CVSROOT Passwd File Privileged Arbitrary Code Execution Vulnerability
Secunia: 10502 - CVS pserver "CVSROOT/passwd" Privilege Escalation Vulnerability, Less Critical
OSVDB: 3227 - CVS Malformed Directory Request Double-free Privilege Escalation

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Entryinfo

Created: 01/06/2004 10:22
Updated: 06/27/2019 14:39
Changes: 01/06/2004 10:22 (106), 06/27/2019 14:39 (5)
Complete: 🔍

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