5.0
MEDIUM
CVE-2011-4858
Apache Tomcat Hash Collision DOS Vulnerability
Description

Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.

INFO

Published Date :

Jan. 5, 2012, 7:55 p.m.

Last Modified :

Nov. 21, 2024, 1:33 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.9

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2011-4858 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apache tomcat
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2011-4858.

URL Resource
http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3e
http://marc.info/?l=bugtraq&m=132871655717248&w=2
http://marc.info/?l=bugtraq&m=132871655717248&w=2
http://marc.info/?l=bugtraq&m=133294394108746&w=2
http://marc.info/?l=bugtraq&m=133294394108746&w=2
http://marc.info/?l=bugtraq&m=136485229118404&w=2
http://marc.info/?l=bugtraq&m=136485229118404&w=2
http://rhn.redhat.com/errata/RHSA-2012-0074.html
http://rhn.redhat.com/errata/RHSA-2012-0075.html
http://rhn.redhat.com/errata/RHSA-2012-0076.html
http://rhn.redhat.com/errata/RHSA-2012-0077.html
http://rhn.redhat.com/errata/RHSA-2012-0078.html
http://rhn.redhat.com/errata/RHSA-2012-0089.html
http://rhn.redhat.com/errata/RHSA-2012-0325.html
http://rhn.redhat.com/errata/RHSA-2012-0406.html
http://secunia.com/advisories/48549
http://secunia.com/advisories/48790
http://secunia.com/advisories/48791
http://secunia.com/advisories/54971
http://secunia.com/advisories/55115
http://tomcat.apache.org/tomcat-7.0-doc/changelog.html
http://www.debian.org/security/2012/dsa-2401
http://www.kb.cert.org/vuls/id/903934 US Government Resource
http://www.nruns.com/_downloads/advisory28122011.pdf
http://www.ocert.org/advisories/ocert-2011-003.html
http://www.securityfocus.com/bid/51200
https://bugzilla.redhat.com/show_bug.cgi?id=750521
https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886
http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3e
http://marc.info/?l=bugtraq&m=132871655717248&w=2
http://marc.info/?l=bugtraq&m=132871655717248&w=2
http://marc.info/?l=bugtraq&m=133294394108746&w=2
http://marc.info/?l=bugtraq&m=133294394108746&w=2
http://marc.info/?l=bugtraq&m=136485229118404&w=2
http://marc.info/?l=bugtraq&m=136485229118404&w=2
http://rhn.redhat.com/errata/RHSA-2012-0074.html
http://rhn.redhat.com/errata/RHSA-2012-0075.html
http://rhn.redhat.com/errata/RHSA-2012-0076.html
http://rhn.redhat.com/errata/RHSA-2012-0077.html
http://rhn.redhat.com/errata/RHSA-2012-0078.html
http://rhn.redhat.com/errata/RHSA-2012-0089.html
http://rhn.redhat.com/errata/RHSA-2012-0325.html
http://rhn.redhat.com/errata/RHSA-2012-0406.html
http://secunia.com/advisories/48549
http://secunia.com/advisories/48790
http://secunia.com/advisories/48791
http://secunia.com/advisories/54971
http://secunia.com/advisories/55115
http://tomcat.apache.org/tomcat-7.0-doc/changelog.html
http://www.debian.org/security/2012/dsa-2401
http://www.kb.cert.org/vuls/id/903934 US Government Resource
http://www.nruns.com/_downloads/advisory28122011.pdf
http://www.ocert.org/advisories/ocert-2011-003.html
http://www.securityfocus.com/bid/51200
https://bugzilla.redhat.com/show_bug.cgi?id=750521
https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2011-4858 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2011-4858 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3e
    Added Reference http://marc.info/?l=bugtraq&m=132871655717248&w=2
    Added Reference http://marc.info/?l=bugtraq&m=132871655717248&w=2
    Added Reference http://marc.info/?l=bugtraq&m=133294394108746&w=2
    Added Reference http://marc.info/?l=bugtraq&m=133294394108746&w=2
    Added Reference http://marc.info/?l=bugtraq&m=136485229118404&w=2
    Added Reference http://marc.info/?l=bugtraq&m=136485229118404&w=2
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0074.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0075.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0076.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0077.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0078.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0089.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0325.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2012-0406.html
    Added Reference http://secunia.com/advisories/48549
    Added Reference http://secunia.com/advisories/48790
    Added Reference http://secunia.com/advisories/48791
    Added Reference http://secunia.com/advisories/54971
    Added Reference http://secunia.com/advisories/55115
    Added Reference http://tomcat.apache.org/tomcat-7.0-doc/changelog.html
    Added Reference http://www.debian.org/security/2012/dsa-2401
    Added Reference http://www.kb.cert.org/vuls/id/903934
    Added Reference http://www.nruns.com/_downloads/advisory28122011.pdf
    Added Reference http://www.ocert.org/advisories/ocert-2011-003.html
    Added Reference http://www.securityfocus.com/bid/51200
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=750521
    Added Reference https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3e [No types assigned]
    Removed Reference MITRE http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%[email protected]%3e
  • CVE Modified by [email protected]

    Jan. 09, 2018

    Action Type Old Value New Value
    Added Reference http://marc.info/?l=bugtraq&m=133294394108746&w=2 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 06, 2017

    Action Type Old Value New Value
    Added Reference http://secunia.com/advisories/48549 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 19, 2017

    Action Type Old Value New Value
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:18886 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886 [No Types Assigned]
  • CVE Modified by [email protected]

    May. 23, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/51200 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 05, 2012

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2011-4858 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2011-4858 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

80.92 }} 15.79%

score

0.98577

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability