Description
The file-upload implementation in rfc1867.c in PHP before 5.4.0 does not properly handle invalid [ (open square bracket) characters in name values, which makes it easier for remote attackers to cause a denial of service (malformed $_FILES indexes) or conduct directory traversal attacks during multi-file uploads by leveraging a script that lacks its own filename restrictions.
Remediation
References
Related Vulnerabilities
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Apache HTTP Server Uncontrolled Resource Consumption Vulnerability (CVE-2009-1890)
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Oracle Database Server CVE-2007-2115 Vulnerability (CVE-2007-2115)