What’s Vulnerable › Vulnerabilities

CVE-2013-4286

• Severity: medium (CVSS 5.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 16.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-02-26 · updated 2026-10-09
• Weakness: CWE-20

Description

Apache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incorrect identification of a request's length and conduct request-smuggling attacks via (1) multiple Content-Length headers or (2) a Content-Length header and a "Transfer-Encoding: chunked" header. NOTE: this vulnerability exists because of an incomplete fix for CVE-2005-2090.

Affected products

• Apache Tomcat: through 6.0.37; 7.0.0, 7.0.0-beta, 7.0.1, 7.0.2, 7.0.2-beta, 7.0.3 (+176)

References

• http://advisories.mageia.org/MGASA-2014-0148.html
• http://marc.info/?l=bugtraq&m=141390017113542&w=2
• http://marc.info/?l=bugtraq&m=144498216801440&w=2
• http://rhn.redhat.com/errata/RHSA-2014-0343.html
• http://rhn.redhat.com/errata/RHSA-2014-0344.html
• http://rhn.redhat.com/errata/RHSA-2014-0345.html
• http://seclists.org/fulldisclosure/2014/Dec/23
• http://secunia.com/advisories/57675
• http://secunia.com/advisories/59036
• http://secunia.com/advisories/59675
• http://secunia.com/advisories/59722
• http://secunia.com/advisories/59724

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