CVE-2009-3558

Public Exploit

Description

The posix_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file.

Category

6.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 4.44% Top 15%
Vendor Advisory mandriva.com Vendor Advisory apple.com Vendor Advisory mandriva.com Vendor Advisory mandriva.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2009/11/20/3 mailing list patch
http://securityreason.com/securityalert/6600 third party advisory exploit
http://www.php.net/releases/5_2_12.php
http://news.php.net/php.announce/79 mailing list
http://svn.php.net/viewvc?view=revision&revision=288943 patch
http://www.mandriva.com/security/advisories?name=MDVSA-2009:285 vendor advisory
http://secunia.com/advisories/37821 third party advisory
http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/posix/posix.c?view=log
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html vendor advisory
http://www.php.net/ChangeLog-5.php
http://support.apple.com/kb/HT4077
http://www.openwall.com/lists/oss-security/2009/11/20/2 mailing list patch
http://www.php.net/releases/5_3_1.php
http://www.vupen.com/english/advisories/2009/3593 vdb entry
http://www.openwall.com/lists/oss-security/2009/11/20/5 mailing list patch
http://secunia.com/advisories/37412 third party advisory vendor advisory
http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/ext/posix/posix.c?view=log
http://www.mandriva.com/security/advisories?name=MDVSA-2009:302 vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:303 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2009-3558?
CVE-2009-3558 has been scored as a medium severity vulnerability.
How to fix CVE-2009-3558?
To fix CVE-2009-3558, 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-2009-3558 being actively exploited in the wild?
It is possible that CVE-2009-3558 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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