Description
Directory traversal vulnerability in the installer in PEAR 1.0 through 1.5.3 allows user-assisted remote attackers to overwrite arbitrary files via a .. (dot dot) sequence in the (1) install-as attribute in the file element in package.xml 1.0 or the (2) as attribute in the install element in package.xml 2.0. NOTE: it could be argued that this does not cross privilege boundaries in typical installations, since the code being installed could perform the same actions.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- PHP PEAR 1.5.3 - INSTALL-AS Attribute Arbitrary File Overwrite EDB-30074 · remote · May 7, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- USN-462-1 vendor-advisory
- 42108 vdb-entry
- MDKSA-2007:110 vendor-advisory
- 24111 vdb-entry
- ADV-2007-1926 vdb-entry
- http://pear.php.net/advisory-20070507.txt
- pear-installer-file-overwrite(34482) vdb-entry
- http://pear.php.net/news/vulnerability2.php
- 25372 third-party-advisory