Bug 740822 (CVE-2011-3372)

Summary:

CVE-2011-3372 cyrus-imapd: nntpd authentication bypass

Product:

[Other] Security Response

Reporter:

Jan Lieskovsky <jlieskov>

Component:

vulnerability

Assignee:

Red Hat Product Security <security-response-team>

Status:

CLOSED ERRATA

QA Contact:

Severity:

medium

Docs Contact:

Priority:

medium

Version:

unspecified

CC:

mhlavink, security-response-team, vdanen

Target Milestone:

---

Keywords:

Security

Target Release:

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Hardware:

All

OS:

Linux

Whiteboard:

Fixed In Version:

cyrus-imapd 2.4.12

Doc Type:

Bug Fix

Doc Text:

Story Points:

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Clone Of:

Environment:

Last Closed:

2011-12-01 17:08:40 UTC

Type:

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Regression:

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Mount Type:

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Documentation:

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CRM:

Verified Versions:

Category:

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oVirt Team:

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RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

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Target Upstream Version:

Embargoed:

Bug Depends On:

741698, 741699, 741700, 741701, 741702, 833885, 844263

Bug Blocks:

740836

Attachments:

Description	Flags
Proposed Cyrus upstream patch to correct this issue against master branch	none
Proposed Cyrus upstream patch to correct this issue against v2.4 branch	none
Proposed Cyrus upstream patch to correct this issue against v2.3 branch	none

Description Jan Lieskovsky 2011-09-23 13:28:45 UTC

It was found that the Cyrus NNTP daemon (nntpd) did not properly verify that the user has successfully authenticated when checking if client requested NNTP commands can be performed. A remote NNTP client could use this flaw to bypass the authentication mechanism and obtain access to the information that should require authentication (list of newsgroups, newsgroup messages) or post new messages.

Acknowledgement:

Red Hat would like to thank Cyrus IMAP project for reporting this issue. Upstream acknowledges Stefan Cornelius of Secunia Research as the original reporter.

Comment 1 Jan Lieskovsky 2011-09-23 13:30:30 UTC

This issue affects the versions of the cyrus-imapd package, as shipped with
Red Hat Enterprise Linux 4, 5, and 6.

--

This issue affects the versions of the cyrus-imapd package, as shipped with Fedora release of 14 and 15.

Comment 3 Jan Lieskovsky 2011-09-23 13:33:31 UTC

Created attachment 524614 [details]
Proposed Cyrus upstream patch to correct this issue against master branch

Comment 4 Jan Lieskovsky 2011-09-23 13:34:32 UTC

Created attachment 524615 [details]
Proposed Cyrus upstream patch to correct this issue against v2.4 branch

Comment 5 Jan Lieskovsky 2011-09-23 13:35:07 UTC

Created attachment 524616 [details]
Proposed Cyrus upstream patch to correct this issue against v2.3 branch

Comment 8 Jan Lieskovsky 2011-09-23 14:16:53 UTC

The CVE identifier of CVE-2011-3372 has been assigned to this issue.

Comment 11 Vincent Danen 2011-10-05 14:55:28 UTC

This issue is now public:

http://cyrusimap.org/mediawiki/index.php/Latest_Updates
http://secunia.com/advisories/46093/

Comment 12 Tomas Hoger 2011-10-05 15:09:10 UTC

Upstream commit:
http://git.cyrusimap.org/cyrus-imapd/commit/?id=77903669e04c9788460561dd0560b9c916519594

Fixed upstream in 2.3.18 and 2.4.12:
http://asg.andrew.cmu.edu/archive/message.php?mailbox=archive.cyrus-announce&msg=202
http://asg.andrew.cmu.edu/archive/message.php?mailbox=archive.cyrus-announce&msg=203

Comment 13 errata-xmlrpc 2011-12-01 16:46:12 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2011:1508 https://rhn.redhat.com/errata/RHSA-2011-1508.html