CVE-2006-5178

Public Exploit

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.

Category

6.2
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory securityfocus.com Vendor Advisory turbolinux.com Vendor Advisory mandriva.com Vendor Advisory secunia.com Vendor Advisory hardened-php.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.grok.org.uk/pipermail/full-disclosure/2006-October/049850.html exploit mailing list
http://www.securityfocus.com/archive/1/448953/100/0/threaded vendor advisory
http://www.securityfocus.com/archive/1/447649/100/0/threaded mailing list
http://www.turbolinux.com/security/2006/TLSA-2006-38.txt vendor advisory
http://www.securityfocus.com/bid/20326 vdb entry exploit
http://securityreason.com/securityalert/1692 third party advisory
http://www.neosecurityteam.net/index.php?action=advisories&id=26
http://secunia.com/advisories/22235 vendor advisory third party advisory exploit
http://www.securityfocus.com/archive/1/448020/100/0/threaded mailing list
http://www.vupen.com/english/advisories/2006/3901 vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/29340 vdb entry
http://www.mandriva.com/security/advisories?name=MDKSA-2006:185 vendor advisory
http://www.hardened-php.net/advisory_082006.132.html vendor advisory exploit
http://securitytracker.com/id?1016977 vdb entry exploit
http://secunia.com/advisories/22424 third party advisory

Frequently Asked Questions

What is the severity of CVE-2006-5178?
CVE-2006-5178 has been scored as a medium severity vulnerability.
How to fix CVE-2006-5178?
To fix CVE-2006-5178, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2006-5178 being actively exploited in the wild?
It is possible that CVE-2006-5178 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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