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AA-2005.0028                  AUSCERT Advisory

                          Mambo 4.5.2.3 and prior
  Remote file inclusion vulnerability allows execution of arbitrary code
                             23 November 2005
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        AusCERT Advisory Summary
        ------------------------

Product:           Mambo 4.5.2.3 and prior
Operating System:  UNIX variants
                   Windows
Impact:            Execute Arbitrary Code/Commands
Access:            Remote/Unauthenticated


OVERVIEW:

	Mambo versions 4.5.2.3 and prior contain a serious vulnerability 
	allowing remote execution of arbitrary PHP code.[1][2]

	The vulnerability is in globals.php which allows arbitrary remote PHP 
	files to be included and executed by overwriting the global 
	mosConfig_absolute_path parameter.

	AusCERT advises that an exploit for this vulnerability is publicly 
	available and widespread exploitation of vulnerable web servers has 
	been reported.[3]


IMPACT:

	A remote attacker can execute arbitrary code on the web server with the 
	privileges of the httpd.


MITIGATION:

	Patched files fixing this vulnerability are available from Mamboforge
	at the URL:

	http://mamboforge.net/frs/download.php/7636/Mambo4523.security_fix.zip

	These files need to be installed manually into the Mambo root and 
	administrator directories.


REFERENCES:

	[1] Mambo announcement
	    http://news.mamboserver.com/index.php?option=com_content&task=view&id=2144&Itemid=2

	[2] Full disclosure mailing list post
	    http://marc.theaimsgroup.com/?l=full-disclosure&m=113215591823624&w=2

	[3] SANS Handler Diary
	    http://isc.sans.org/diary.php?date=2005-11-20


AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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