bugtraq - [SECURITY] CVE-2008-2370: Apache CouchDB Timing Attack Vulnerability

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Message-Id: <02AC8AFB-A0BF-4916-9F2B-CCA5009FB81C@apache.org>
Date: Wed, 31 Mar 2010 15:48:01 +0200
From: Jan Lehnardt <jan@...che.org>
To: dev@...chdb.apache.org
Cc: user@...chdb.apache.org, security@...chdb.apache.org,
	security@...che.org, full-disclosure@...ts.grok.org.uk,
	bugtraq@...urityfocus.com, Jason Davies <jasondavies@...che.org>
Subject: [SECURITY] CVE-2008-2370: Apache CouchDB Timing Attack Vulnerability 

CVE-2008-2370: Apache CouchDB Timing Attack Vulnerability

Severity: Important

Vendor:
The Apache Software Foundation

Versions Affected:
Apache CouchDB 0.8.0 to 0.10.1

Description:
Apache CouchDB versions prior to version 0.11.0 are vulnerable to
timing attacks, also known as side-channel information leakage,
due to using simple break-on-inequality string comparisons when
verifying hashes and passwords.

Mitigation:
All users should upgrade to CouchDB 0.11.0. Upgrades from the 0.10.x
series should be seamless. Users on earlier versions should consult

 http://wiki.apache.org/couchdb/Breaking_changes

Example:
A canonical description of the attack can be found in

 http://codahale.com/a-lesson-in-timing-attacks/

Credit:
This issue was discovered by Jason Davies of the Apache CouchDB 
development team.

References:
http://couchdb.apache.org/
http://couchdb.apache.org/downloads.html
http://wiki.apache.org/couchdb/Breaking_changes
http://codahale.com/a-lesson-in-timing-attacks/

Jan Lehnardt
--