Vulnerability in Apache HTTP Server

CVE-2013-5704

The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass "RequestHeader unset" directives by placing a header in the trailer portion of data sent with chunked transfer coding. NOTE: the vendor states "this is not a security issue in httpd as such."

Published · last modified .

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.526 (99.0th percentile), scored .

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2013-5704: fell from 0.563 to 0.526.

EPSS over last 30 days · oldest: 0.563 · newest: 0.526 · change: -0.036

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2013-5704?
CVE-2013-5704 is a vulnerability in Apache HTTP Server. Published 2014-04-15.
Is CVE-2013-5704 known to be exploited?
19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.