CVE-2011-4885
60Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendepss 84%
from disclosure to weapon0 days
Published on NVDDec 30
1st PoCJul 15
metasploitDec 28
exploitation probability
84%top 1% of all CVEs
observed exploitation
nono source reports it
5 public exploit(s)
PHP before 5.3.9 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/apublic PoCs found — 5✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/18305exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/2012exploitdbwww.exploit-db.com/exploits/18296unverifiedcve_referencewww.exploit-db.com/exploits/18305unverifiedcve_referencewww.exploit-db.com/exploits/18296unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.htmlhttp://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041http://lists.apple.com/archives/security-announce/2012/May/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2012-03/msg00013.htmlhttp://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.htmlhttp://marc.info/?l=bugtraq&m=132871655717248&w=2http://marc.info/?l=bugtraq&m=133469208622507&w=2http://rhn.redhat.com/errata/RHSA-2012-0071.htmlhttp://secunia.com/advisories/47404http://secunia.com/advisories/48668https://exchange.xforce.ibmcloud.com/vulnerabilities/72021https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py