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CVE-2011-4858

CVE-2011-4858

60Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendepss 80%
from disclosure to weapon0 days
Published on NVDJan 5
1st PoCJul 15
metasploitDec 28
exploitation probability
80%top 1% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Fixed
28 products (230 components)
Red Hat Enterprise Linux (v. 5 server) · Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Server · Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Server · RHEL Desktop Workstation (v. 5 client) · Red Hat Enterprise Linux Desktop Optional (v. 6) · and others 23
fix ↗
Not affected
2 products (12 components) — because the vulnerable code is not present in the product
Red Hat JBoss Web Platform 5 for RHEL 4 AS · Red Hat JBoss Web Platform 5 for RHEL 4 ES
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.
Affected products
n/a · n/a
public PoCs found — 1✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/2012
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3ehttp://marc.info/?l=bugtraq&m=132871655717248&w=2http://marc.info/?l=bugtraq&m=133294394108746&w=2http://marc.info/?l=bugtraq&m=136485229118404&w=2http://rhn.redhat.com/errata/RHSA-2012-0074.htmlhttp://rhn.redhat.com/errata/RHSA-2012-0075.htmlhttp://rhn.redhat.com/errata/RHSA-2012-0076.htmlhttp://rhn.redhat.com/errata/RHSA-2012-0077.htmlhttp://rhn.redhat.com/errata/RHSA-2012-0078.htmlhttp://rhn.redhat.com/errata/RHSA-2012-0089.htmlhttp://rhn.redhat.com/errata/RHSA-2012-0325.htmlhttp://rhn.redhat.com/errata/RHSA-2012-0406.html