Bug 522209 (CVE-2009-3095)

Summary:	CVE-2009-3095 httpd: mod_proxy_ftp FTP command injection via Authorization HTTP header
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	james.yancey.ctr, jlieskov, jorton, ldimaggi, mjc, Nicholas.Hawkins.ctr, vdanen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-08-21 22:39:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	523831, 534038, 534039, 534040, 534041, 534042, 534086, 534088, 538228
Bug Blocks:

Description Tomas Hoger 2009-09-09 18:46:08 UTC

The mod_proxy_ftp module in the Apache HTTP Server allows remote
attackers to bypass intended access restrictions and send arbitrary
commands to an FTP server via vectors related to the embedding of
these commands in the Authorization HTTP header, as demonstrated by a
certain module in VulnDisco Pack Professional 8.11. NOTE: as of
20090903, this disclosure has no actionable information. However,
because the VulnDisco Pack author is a reliable researcher, the issue
is being assigned a CVE identifier for tracking purposes.

References:
http://intevydis.com/vd-list.shtml

Comment 5 Tomas Hoger 2009-09-21 10:53:57 UTC

This issue affects httpd 2.0.x versions as shipped in Red Hat Enterprise Linux 3 and 4 (older 2.0.x version may be affected too), and httpd 2.2.x up to the current upstream version 2.2.13 and hence including versions shipped in Red Hat Enterprise Linux 5, Red Hat Application Stack v2 and JBoss Enterprise Web Server.

This issue has very limited impact.  It allows attacker to inject FTP commands via Authorization HTTP header.  Commands can be embedded as part of user name or password.

Injecting commands as part of the user name will not give attacker any extra privileges on the proxied-to FTP server, as those commands will be processed by the server before the authentication is finished and hence are unlikely to trigger anything but an authentication error.

When trying to inject FTP commands as part of the password, command may be executed post-authentication if an attacker knows the right password.  Commands will be executed on behalf of the authenticated FTP user.  Hence no trust boundary is crossed, at attacker can do the same (and more) via direct connection to the FTP server.

This was rated as having low security impact.  Future httpd updates may address this flaw.  We do not currently plan to release updates to only address this flaw.

Upstream commit:
http://svn.apache.org/viewvc?view=rev&revision=814045

Comment 6 errata-xmlrpc 2009-09-23 21:38:59 UTC

This issue has been addressed in following products:

  Red Hat Web Application Stack for RHEL 5

Via RHSA-2009:1461 https://rhn.redhat.com/errata/RHSA-2009-1461.html

Comment 7 Jan Lieskovsky 2009-09-25 16:08:03 UTC

Issue was fixed in upstream Apache httpd 2.2.14-dev version:

  http://httpd.apache.org/security/vulnerabilities_22.html

Comment 10 errata-xmlrpc 2009-11-11 22:09:33 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2009:1580 https://rhn.redhat.com/errata/RHSA-2009-1580.html

Comment 11 errata-xmlrpc 2009-11-11 22:09:40 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 3

Via RHSA-2009:1579 https://rhn.redhat.com/errata/RHSA-2009-1579.html

Comment 13 Fedora Update System 2009-12-03 15:57:12 UTC

httpd-2.2.14-1.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/httpd-2.2.14-1.fc11

Comment 14 Fedora Update System 2009-12-03 16:28:22 UTC

httpd-2.2.14-1.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/httpd-2.2.14-1.fc10

Comment 15 Fedora Update System 2009-12-10 04:17:10 UTC

httpd-2.2.14-1.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 16 Fedora Update System 2009-12-18 04:22:06 UTC

httpd-2.2.14-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 17 errata-xmlrpc 2010-01-06 16:21:08 UTC

This issue has been addressed in following products:

  JBEWS 1.0.0 for RHEL 4
  JBEWS 1.0.0 for RHEL 5

Via RHSA-2010:0011 https://rhn.redhat.com/errata/RHSA-2010-0011.html

Comment 18 Fedora Update System 2010-02-27 03:40:43 UTC

httpd-2.2.14-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 19 errata-xmlrpc 2010-08-04 21:31:06 UTC

This issue has been addressed in following products:

  Red Hat Certificate System 7.3

Via RHSA-2010:0602 https://rhn.redhat.com/errata/RHSA-2010-0602.html