Vulnerability Description
Race condition in the symlink function in PHP 5.1.6 and earlier allows local users to bypass the open_basedir restriction by using a combination of symlink, mkdir, and unlink functions to change the file path after the open_basedir check and before the file is opened by the underlying system, as demonstrated by symlinking a symlink into a subdirectory, to point to a parent directory via .. (dot dot) sequences, and then unlinking the resulting symlink.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | <= 5.1.6 |
Related Weaknesses (CWE)
References
- http://lists.grok.org.uk/pipermail/full-disclosure/2006-October/049850.htmlExploit
- http://secunia.com/advisories/22235ExploitVendor Advisory
- http://secunia.com/advisories/22424
- http://securityreason.com/securityalert/1692
- http://securitytracker.com/id?1016977Exploit
- http://www.hardened-php.net/advisory_082006.132.htmlExploitVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:185
- http://www.neosecurityteam.net/index.php?action=advisories&id=26
- http://www.securityfocus.com/archive/1/447649/100/0/threaded
- http://www.securityfocus.com/archive/1/448020/100/0/threaded
- http://www.securityfocus.com/archive/1/448953/100/0/threaded
- http://www.securityfocus.com/bid/20326Exploit
- http://www.turbolinux.com/security/2006/TLSA-2006-38.txt
- http://www.vupen.com/english/advisories/2006/3901
- https://exchange.xforce.ibmcloud.com/vulnerabilities/29340
FAQ
What is CVE-2006-5178?
CVE-2006-5178 is a vulnerability with a CVSS score of 6.2 (MEDIUM). Race condition in the symlink function in PHP 5.1.6 and earlier allows local users to bypass the open_basedir restriction by using a combination of symlink, mkdir, and unlink functions to change the f...
How severe is CVE-2006-5178?
CVE-2006-5178 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2006-5178?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php.