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Fencer Intel
medium 4.3

CVE-2012-0053 json

protocol.c in the Apache HTTP Server 2.2.x through 2.2.21 does not properly restrict header information during construction of Bad Request…

published 2012-01-28 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-0092

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
82.2%
EPSS 82.2% chance of exploitation in 30 days, percentile 99.6%
public exploits
1
Exploit-DB

Summary

protocol.c in the Apache HTTP Server 2.2.x through 2.2.21 does not properly restrict header information during construction of Bad Request (aka 400) error documents, which allows remote attackers to obtain the values of HTTPOnly cookies via vectors involving a (1) long or (2) malformed header in conjunction with crafted web script.

Patch / fix

  • apache http_server 2.0.65, 2.2.22
  • apache2 Debian 14, Debian 13, Debian 12 2.2.22-1

debian advisories DEBIAN-CVE-2012-0053

  • httpd RHEL 5 2.2.3-63.el5_8.1
  • mod_ssl RHEL 5 1:2.2.3-63.el5_8.1
  • httpd-manual RHEL 5 2.2.3-63.el5_8.1
  • httpd RHEL 6 2.2.15-15.el6_2.1
  • mod_ssl RHEL 6 1:2.2.15-15.el6_2.1
  • httpd-tools RHEL 6 2.2.15-15.el6_2.1
  • httpd-manual RHEL 6 2.2.15-15.el6_2.1
  • httpd jboss enterprise web server 1 2.2.17-15.4.ep5.el5

red hat advisories RHSA-2012:0323RHSA-2012:0128RHSA-2012:0542

  • apache2 openSUSE Tumbleweed 2.4.23-4.1

opensuse advisories openSUSE-SU-2024:10268-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-0053 updated cvss 4.3

httpd: cookie exposure due to error responses

  • Red Hat Directory Server 8 httpd Red Hat Enterprise Linux 4 httpd
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) httpd 2.2.3-63.el5_8.1, mod_ssl 2.2.3-63.el5_8.1, httpd-manual 2.2.3-63.el5_8.1 Red Hat Enterprise Linux Desktop (v. 5 client) httpd 2.2.3-63.el5_8.1, mod_ssl 2.2.3-63.el5_8.1
    fixed: vendor fix RHSA-2012:0323
  • Red Hat Enterprise Linux Desktop (v. 6) httpd 2.2.15-15.el6_2.1, httpd-tools 2.2.15-15.el6_2.1 Red Hat Enterprise Linux Desktop Optional (v. 6) httpd 2.2.15-15.el6_2.1, mod_ssl 2.2.15-15.el6_2.1, httpd-manual 2.2.15-15.el6_2.1 Red Hat Enterprise Linux HPC Node (v. 6) httpd 2.2.15-15.el6_2.1, httpd-tools 2.2.15-15.el6_2.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) httpd 2.2.15-15.el6_2.1, mod_ssl 2.2.15-15.el6_2.1, httpd-manual 2.2.15-15.el6_2.1 Red Hat Enterprise Linux Server (v. 6) httpd 2.2.15-15.el6_2.1, mod_ssl 2.2.15-15.el6_2.1, httpd-tools 2.2.15-15.el6_2.1, httpd-manual 2.2.15-15.el6_2.1 Red Hat Enterprise Linux Workstation (v. 6) httpd 2.2.15-15.el6_2.1, mod_ssl 2.2.15-15.el6_2.1, httpd-tools 2.2.15-15.el6_2.1, httpd-manual 2.2.15-15.el6_2.1
    fixed: vendor fix RHSA-2012:0128
  • Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Server httpd 2.2.17-15.4.ep5.el5, mod_ssl 2.2.17-15.4.ep5.el5, httpd-manual 2.2.17-15.4.ep5.el5 Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Server httpd 2.2.17-15.4.ep5.el6, mod_ssl 2.2.17-15.4.ep5.el6, httpd-tools 2.2.17-15.4.ep5.el6, httpd-manual 2.2.17-15.4.ep5.el6
    fixed: vendor fix RHSA-2012:0542
  • Red Hat JBoss Web Server 1.0
    fixed: vendor fix RHSA-2012:0543
  • Red Hat RHEL Desktop Workstation (v. 5 client) httpd 2.2.3-63.el5_8.1, httpd-manual 2.2.3-63.el5_8.1
    fixed: vendor fix RHSA-2012:0323

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-18442)

Exploit prediction

82.20% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-18442 Apache - httpOnly Cookie Disclosure remote, 2012-01-31

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.