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National Cyber Awareness System

Vulnerability Summary for CVE-2011-1144

Original release date:03/03/2011
Last revised:03/11/2011
Source: US-CERT/NIST

Overview

The installer in PEAR 1.9.2 and earlier allows local users to overwrite arbitrary files via a symlink attack on the package.xml file, related to the (1) download_dir, (2) cache_dir, (3) tmp_dir, and (4) pear-build-download directories. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1072.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:3.3 (LOW) (AV:L/AC:M/Au:N/C:N/I:P/A:P) (legend)
Impact Subscore: 4.9
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized modification; Allows disruption of service

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External Source: XF
Name: pear-package-symlink(65911)
Hyperlink:http://xforce.iss.net/xforce/xfdb/65911
External Source: MISC
Name: http://pear.php.net/bugs/bug.php?id=18056
Hyperlink:http://pear.php.net/bugs/bug.php?id=18056
External Source: MLIST
Name: [oss-security] 20110301 Re: CVE Request: PEAR Installer 1.9.1 <= - Symlink Attack
Hyperlink:http://openwall.com/lists/oss-security/2011/03/01/9
External Source: MLIST
Name: [oss-security] 20110301 Re: CVE Request: PEAR Installer 1.9.1 <= - Symlink Attack
Hyperlink:http://openwall.com/lists/oss-security/2011/03/01/8
External Source: MLIST
Name: [oss-security] 20110301 Re: CVE Request: PEAR Installer 1.9.1 <= - Symlink Attack
Hyperlink:http://openwall.com/lists/oss-security/2011/03/01/7
External Source: MLIST
Name: [oss-security] 20110301 Re: CVE Request: PEAR Installer 1.9.1 <= - Symlink Attack
Hyperlink:http://openwall.com/lists/oss-security/2011/03/01/5
External Source: MLIST
Name: [oss-security] 20110301 Re: CVE Request: PEAR Installer 1.9.1 <= - Symlink Attack
Hyperlink:http://openwall.com/lists/oss-security/2011/03/01/4
External Source: MLIST
Name: [oss-security] 20110228 Re: CVE Request: PEAR Installer 1.9.1 <= - Symlink Attack
Hyperlink:http://openwall.com/lists/oss-security/2011/02/28/5

Vulnerable software and versions

Nav control imageConfiguration 1
spacerNav control imageOR
spacerspacerNav control image* cpe:/a:php:pear:0.2.2
spacerspacerNav control image* cpe:/a:php:pear:0.9
spacerspacerNav control image* cpe:/a:php:pear:0.90
spacerspacerNav control image* cpe:/a:php:pear:0.10
spacerspacerNav control image* cpe:/a:php:pear:0.11
spacerspacerNav control image* cpe:/a:php:pear:1.0b1
spacerspacerNav control image* cpe:/a:php:pear:1.0b2
spacerspacerNav control image* cpe:/a:php:pear:1.0
spacerspacerNav control image* cpe:/a:php:pear:1.0.1
spacerspacerNav control image* cpe:/a:php:pear:1.2
spacerspacerNav control image* cpe:/a:php:pear:1.2.1
spacerspacerNav control image* cpe:/a:php:pear:1.0b3
spacerspacerNav control image* cpe:/a:php:pear:1.1
spacerspacerNav control image* cpe:/a:php:pear:1.2b3
spacerspacerNav control image* cpe:/a:php:pear:1.2b4
spacerspacerNav control image* cpe:/a:php:pear:1.2b1
spacerspacerNav control image* cpe:/a:php:pear:1.2b2
spacerspacerNav control image* cpe:/a:php:pear:1.3.3
spacerspacerNav control image* cpe:/a:php:pear:1.3.1
spacerspacerNav control image* cpe:/a:php:pear:1.3
spacerspacerNav control image* cpe:/a:php:pear:1.2b5
spacerspacerNav control image* cpe:/a:php:pear:1.3.6
spacerspacerNav control image* cpe:/a:php:pear:1.3.5
spacerspacerNav control image* cpe:/a:php:pear:1.3.4
spacerspacerNav control image* cpe:/a:php:pear:1.3.3.1
spacerspacerNav control image* cpe:/a:php:pear:1.3b5
spacerspacerNav control image* cpe:/a:php:pear:1.3b3
spacerspacerNav control image* cpe:/a:php:pear:1.3b2
spacerspacerNav control image* cpe:/a:php:pear:1.3b1
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a10
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a1
spacerspacerNav control image* cpe:/a:php:pear:1.4.0
spacerspacerNav control image* cpe:/a:php:pear:1.3b6
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a4
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a5
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a6
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a7
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a11
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a12
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a2
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a3
spacerspacerNav control image* cpe:/a:php:pear:1.4.0:rc1
spacerspacerNav control image* cpe:/a:php:pear:1.4.0:rc2
spacerspacerNav control image* cpe:/a:php:pear:1.4.1
spacerspacerNav control image* cpe:/a:php:pear:1.4.2
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a8
spacerspacerNav control image* cpe:/a:php:pear:1.4.0a9
spacerspacerNav control image* cpe:/a:php:pear:1.9.2 and previous versions
spacerspacerNav control image* cpe:/a:php:pear:1.9.1
spacerspacerNav control image* cpe:/a:php:pear:1.6.1
spacerspacerNav control image* cpe:/a:php:pear:1.5.1
spacerspacerNav control image* cpe:/a:php:pear:1.5.0
* Denotes Vulnerable Software
* Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
CVE Standard Vulnerability Entry:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1144