Invalid Character Handling Vulnerability in PHP File-Upload Implementation

CVE-2012-1172 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:P

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.

Learn more about our Web Application Penetration Testing UK.