CVE-2013-4286
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 16.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 5.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
- EPSS
- 16.21% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- apache/tomcat
- Source
- secalert@redhat.com
EPSS 16.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
- http://secunia.com/advisories/59733
- http://secunia.com/advisories/59873
- http://svn.apache.org/viewvc?view=revision&revision=1521829
- http://svn.apache.org/viewvc?view=revision&revision=1521854
- http://svn.apache.org/viewvc?view=revision&revision=1552565
- http://tomcat.apache.org/security-6.htmlVendor Advisory
- http://tomcat.apache.org/security-7.htmlVendor Advisory
- http://tomcat.apache.org/security-8.htmlVendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21667883
- http://www-01.ibm.com/support/docview.wss?uid=swg21675886
- http://www-01.ibm.com/support/docview.wss?uid=swg21677147
- http://www-01.ibm.com/support/docview.wss?uid=swg21678113
- http://www-01.ibm.com/support/docview.wss?uid=swg21678231
- http://www.debian.org/security/2016/dsa-3530
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:052
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
- http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.