Date: Wed, 8 Jan 2014 11:13:26 -0500 From: Chris Sandulow <security@...godb.com> To: Solar Designer <solar@...nwall.com> Cc: oss-security@...ts.openwall.com Subject: Re: MongoDB memory over-read via incorrect BSON object length (was: [HITB-Announce] HITB Magazine Issue 10 Out Now) The issue described in http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6619 was originally reported to MongoDB by Positive Technologies (ptsecurity.ru) in November 2012, with credit listed to Mikhail Firstov of Positive Research Center (Positive Technologies Company). See https://jira.mongodb.org/browse/SERVER-7769 for more details. The issue had also been identified earlier as a potential denial of service condition. The issue was resolved in December 2012 in MongoDB 2.3.2 when strict BSON object checking was enabled by default. In earlier versions this check needs to be explicitly enabled with the --objcheck argument to the server, which prevents insertion of records which could trigger the issue. Thanks, On Tue, Jan 7, 2014 at 6:58 PM, Solar Designer <solar@...nwall.com> wrote: > On Tue, Jan 07, 2014 at 05:15:11PM -0500, cve-assign@...re.org wrote: > > >There is a memory over-read bug that can be used by an authenticated > > >user (if applicable) to obtain raw MongoDB server process memory > > >contents via incorrect BSON object length. I guess that under most > > >deployments this does not cross a security boundary, but for some it > > >could (differently-privileged MongoDB users, data already deleted from > > >the DB yet staying in process memory, or/and metadata that is not > > >normally retrievable). > > > > Use CVE-2012-6619. > > Thanks! To make sure MongoDB developers are aware of this, I am CC'ing > this reply to security@...godb.com as specified here: > > http://docs.mongodb.org/manual/tutorial/create-a-vulnerability-report/ > > Past MongoDB security issues are listed here: > > http://www.mongodb.org/about/alerts/#security-related > > and they don't appear to include this "new" issue yet. > > I've just added these two links to: > > http://oss-security.openwall.org/wiki/software#mongodb > > MongoDB - here's some more context regarding the specific vulnerability > (now known as CVE-2012-6619, as per the assignment above): > > http://www.openwall.com/lists/oss-security/2014/01/07/2 > > Alexander >
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