Link following in PEAR - CVE-2011-1144
Published: March 3, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45260
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-1144
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PHP Group
Affected software:
PEAR
PEAR
Detailed vulnerability description
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.
How to mitigate CVE-2011-1144
Install update from vendor's website.
Sources
- 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