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CVE-2009-4017

5.0 · MEDIUM

PHP before 5.2.12 and 5.3.x before 5.3.1 does not restrict the number of temporary files created when handling a multipart/form-data POST request, which allows remote attackers to cause a denial of…

Published Nov 24, 2009phpCWE-770EPSS 12.04%

Overview

CVE-2009-4017 is a medium-severity vulnerability affecting php php. It was published on November 24, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

PHP before 5.2.12 and 5.3.x before 5.3.1 does not restrict the number of temporary files created when handling a multipart/form-data POST request, which allows remote attackers to cause a denial of service (resource exhaustion), and makes it easier for remote attackers to exploit local file inclusion vulnerabilities, via multiple requests, related to lack of support for the max_file_uploads directive.

Remediation

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
phpphp>= 0, < 5.2.12Affected

References

Reflists.apple.com/archives/security-announce/2010//Mar/msg00001.htmlRefmarc.info/?l=bugtraq&m=127680701405735&w=2Refnews.php.net/php.announce/79Refseclists.org/fulldisclosure/2009/Nov/228Refsecunia.com/advisories/37482Refsecunia.com/advisories/37821Refsecunia.com/advisories/40262Refsecunia.com/advisories/41480Refsecunia.com/advisories/41490Refsupport.apple.com/kb/HT4077

How CyberStrike helps

Frequently asked questions

What is CVE-2009-4017?

CVE-2009-4017 is a medium-severity vulnerability affecting php php. It was published on November 24, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2009-4017?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-4017?

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-4017?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-4017 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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