SB2011030306 - Link following in PEAR
Published: March 3, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011030306
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Link following (CVE-ID: CVE-2011-1144)
The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.
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.
Remediation
Install update from vendor's website.
References
- http://openwall.com/lists/oss-security/2011/02/28/5
- http://openwall.com/lists/oss-security/2011/03/01/4
- http://openwall.com/lists/oss-security/2011/03/01/5
- http://openwall.com/lists/oss-security/2011/03/01/7
- http://openwall.com/lists/oss-security/2011/03/01/8
- http://openwall.com/lists/oss-security/2011/03/01/9
- http://pear.php.net/bugs/bug.php?id=18056
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65911