SB2011123003 - Input validation error in Plone
Published: December 30, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011123003
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2011-4462)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Plone 4.1.3 and earlier 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.
Remediation
Install update from vendor's website.
References
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://secunia.com/advisories/47406
- http://www.kb.cert.org/vuls/id/903934
- http://www.nruns.com/_downloads/advisory28122011.pdf
- http://www.ocert.org/advisories/ocert-2011-003.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72018