Not ratedCVE-2012-0053

Apache HTTP Server: security vulnerability (CVE-2012-0053)

Published 28.01.2012Sources: CVE.org

What is affected, what to do

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.

Update Apache HTTP Server to version 2.0.65, Apache HTTP Server to version 2.2.22.

Affected: Apache HTTP Server lt 2.0.0..2.0.65
Apache HTTP Server lt 2.2.0..2.2.22
Debian Linux eq 5.0..5.0
Debian Linux eq 6.0..6.0
Debian Linux eq 7.0..7.0
OpenSUSE eq 11.4..11.4
SUSE Linux Enterprise Server eq 10..10
SUSE Linux Enterprise Software Development Kit (SDK) eq 10..10
Red Hat Storage eq 2.0..2.0
Redhat Enterprise Linux Desktop eq 6.0..6.0
Red Hat Enterprise Linux Extended Update Support (EUS) eq 6.2..6.2
Redhat Enterprise Linux Server eq 6.0..6.0
Redhat Enterprise Linux Workstation eq 6.0..6.0
RedHat JBoss Enterprise Web Server eq 1.0.0..1.0.0
Fixed in: Apache HTTP Server 2.0.65
Apache HTTP Server 2.2.22

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Metrics

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Priority

No value is available for this vulnerability.

—

CVSS v3

No value is available for this vulnerability.

82.2 %

EPSS score

High — model estimates ≥ 50% chance of real-world exploitation within 30 days.

Source: FIRST EPSS, percentile 99.65

Show all metrics

Severity: Not rated
Priority (0–325) The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first? Read in glossary: 79.44 Methodology
Exploit maturity An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack. Read in glossary: no public PoC known
EPSS score The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“. Read in glossary: 82.2 %; High — model estimates ≥ 50% chance of real-world exploitation within 30 days.
EPSS percentile The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking. Read in glossary: 99.65; Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
KEV status The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: —
Published: 28.01.2012

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2 NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management. Read in glossary: Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
CRA The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates. Read in glossary: From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001 ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security. Read in glossary: Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

Source: NVD (NIST), cvelistv5

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

Affected products
		Affected versions	Fixed in
apache	http_server	`2.2.0 – < 2.2.22` `2.0.0 – < 2.0.65`	`2.2.22` `2.0.65`
redhat	jboss_enterprise_web_server	`1.0.0`	—
redhat	storage	`2.0`	—

Vendors and products

Affected operating systems

Affected operating systems

Linux	debian	debian_linux	`5.0`
Linux	debian	debian_linux	`6.0`
Linux	debian	debian_linux	`7.0`
Linux	redhat	enterprise_linux_desktop	`6.0`
Linux	redhat	enterprise_linux_eus	`6.2`
Linux	redhat	enterprise_linux_server	`6.0`
Linux	redhat	enterprise_linux_workstation	`6.0`
Linux	suse	linux_enterprise_server	`10`
Linux	suse	linux_enterprise_software_development_kit	`10`
Linux	opensuse	opensuse	`11.4`

References & sources

h20000.www2.hp.comHPSBMU02786Vendor advisory, x_refsource_HP, Broken link
mandriva.comMDVSA-2012:012Vendor advisory, x_refsource_MANDRIVA, Broken link
securityfocus.com51706Vulnerability database, x_refsource_BID, Third-party advisory, Vulnerability database
marc.infoSSRT101112Vendor advisory, x_refsource_HP, Issue tracking, Mailing list, Third-party advisory
rhn.redhat.comRHSA-2012:0543Vendor advisory, x_refsource_REDHAT, Third-party advisory
marc.infoSSRT100772Vendor advisory, x_refsource_HP, Issue tracking, Mailing list, Third-party advisory
rhn.redhat.comRHSA-2012:0128Vendor advisory, x_refsource_REDHAT, Third-party advisory
oracle.comtechnetwork/topics/security/cpujan2015-1972971.htmlx_refsource_CONFIRM, Third-party advisory
rhn.redhat.comRHSA-2012:0542Vendor advisory, x_refsource_REDHAT, Third-party advisory
httpd.apache.orgsecurity/vulnerabilities_22.htmlx_refsource_CONFIRM, Vendor advisory
lists.apple.comAPPLE-SA-2012-09-19-2Vendor advisory, x_refsource_APPLE, Broken link, Mailing list
support.apple.comkb/HT5501x_refsource_CONFIRM, Third-party advisory
oracle.comtechnetwork/topics/security/cpujul2012-392727.htmlx_refsource_CONFIRM, Third-party advisory
bugzilla.redhat.comshow_bug.cgi?id=785069x_refsource_CONFIRM, Issue tracking, Third-party advisory
marc.infoSSRT100852Vendor advisory, x_refsource_HP, Issue tracking, Mailing list, Third-party advisory
marc.infoHPSBUX02761Vendor advisory, x_refsource_HP, Issue tracking, Mailing list, Third-party advisory
lists.opensuse.orgopenSUSE-SU-2012:0314Vendor advisory, x_refsource_SUSE, Mailing list, Third-party advisory
mandriva.comMDVSA-2013:150Vendor advisory, x_refsource_MANDRIVA, Broken link
secunia.com48551Third-party advisory, x_refsource_SECUNIA, Not applicable
svn.apache.orgviewvc?view=revision&revision=1235454x_refsource_CONFIRM, Patch, Vendor advisory

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<a href="https://intel.neosec.eu/en/cve/CVE-2012-0053"><img src="https://intel.neosec.eu/badge/cve/CVE-2012-0053.svg?lang=en" alt="CVE-2012-0053 – NEOSEC Intel" height="20"></a>