Bug 518412 (CVE-2009-3369) - CVE-2009-3369 BackupPC: Permission bypass via ClientNameAlias by using rsync data backup method
Summary: CVE-2009-3369 BackupPC: Permission bypass via ClientNameAlias by using rsync ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2009-3369
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL: http://bugs.debian.org/cgi-bin/bugrep...
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-08-20 09:54 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:31 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-09-13 16:34:26 UTC


Attachments (Terms of Use)

Description Jan Lieskovsky 2009-08-20 09:54:57 UTC
David Ambrose-Griffith from Durham University reported permission bypass
flaw in the way BackupPC server used to verify BackupPC client privileges
to perform PC backup / restore, when using rsync data backup method.
BackupPC client with certain configuration could use this flaw to retrieve security sensitive data (by backup) or, potentially to overwrite arbitrary system of backuped host (by restore), leading to privilege escalation.

References:
-----------
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=542218

Comment 3 Jan Lieskovsky 2009-09-25 08:27:24 UTC
Common Vulnerabilities and Exposures assigned an identifier CVE-2009-3369 to
the following vulnerability:

CgiUserConfigEdit in BackupPC 3.1.0, when SSH keys and Rsync are in
use in a multi-user environment, does not restrict users from the
ClientNameAlias function, which allows remote authenticated users to
read and write sensitive files by modifying ClientNameAlias to match
another system, then initiating a backup or restore.

References:
-----------
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3369
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=542218
http://secunia.com/advisories/36393
http://osvdb.org/57236

Comment 4 Jan Lieskovsky 2009-09-25 08:31:52 UTC
This issue affects the versions of BackupPC package, as shipped 
with Fedora releases of 10 and 11 and within EPEL-5 project.

Please fix.

Comment 5 Fedora Update System 2009-09-25 15:29:07 UTC
BackupPC-3.1.0-7.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/BackupPC-3.1.0-7.fc11

Comment 6 Fedora Update System 2009-09-25 15:29:13 UTC
BackupPC-3.1.0-6.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/BackupPC-3.1.0-6.fc10

Comment 7 Fedora Update System 2009-10-27 06:56:10 UTC
BackupPC-3.1.0-7.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2009-10-27 07:01:01 UTC
BackupPC-3.1.0-6.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.