In Apache httpd 2.4.0 to 2.4.29, the expression specified in <FilesMatch> could match '$' to a newline character in a…
Apache Software Foundation · Apache HTTP Server
The flaw is in Apache HTTP Server (Apache Software Foundation) versions 2.4.0 through 2.4.29, where the expression in a <FilesMatch> directive can match "$" against a newline character inside a filename instead of only the true end of the filename. An attacker can exploit this where uploads of certain file types are blocked externally, by submitting a malicious filename whose trailing portion matches the restricted pattern, which requires the server to rely on <FilesMatch> rules for that filtering.
In Apache httpd 2.4.0 to 2.4.29, the expression specified in <FilesMatch> could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename.
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 4 years after disclosure. Public exploit code (PoC-in-GitHub) appeared 8 years after disclosure.
- Disclosedday 0
- First seen exploitedVulnCheck KEV evidence+4 yrs
- Public exploit codePoC-in-GitHub+8 yrs
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 4 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
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