Bug 959047 (CVE-2013-2051)

Summary: CVE-2013-2051 tomcat: DIGEST authentication vulnerable to replay attacks
Product: [Other] Security Response Reporter: David Jorm <djorm>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: dknox, mjc, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=low,public=20130528,reported=20130503,source=redhat,cvss2=2.6/AV:N/AC:H/Au:N/C:N/I:P/A:N,rhel-6/tomcat6=affected
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-05-28 15:50:54 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Bug Depends On: 956771, 960857    
Bug Blocks: 959050    

Description David Jorm 2013-05-03 01:04:43 EDT
It was found that the fix for CVE-2012-5887 shipped for tomcat 6 on Red Hat Enterprise Linux 6 (RHSA-2013:0623) was incomplete. The fix only allowed DIGEST authentication to succeed when a stale nonce was provided, rather than when a stale nonce was NOT provided. As a result, DIGEST authentication did not function. However, a man-in-the-middle attacker could record a DIGEST authentication exchange, wait until the associated nonce is marked as stale on the server, then successfully replay this request.
Comment 2 errata-xmlrpc 2013-05-28 13:31:11 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0869 https://rhn.redhat.com/errata/RHSA-2013-0869.html