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AusCERT Update AU-2006.0002 - [Win][UNIX/Linux]
Sun Java vulnerability now being exploited in the wild
13 January 2006

        AusCERT Update Summary
        ----------------------

Product:           Sun Java Runtime Environment (JRE) 5.0 update 3 and prior
                   Sun Java Runtime Environment (JRE) 1.4.2_08 and prior
                   Sun Java Runtime Environment (JRE) 1.3.1_15 and prior
                   Sun Java Development Kit 5.0 update 3 and prior
                   Sun Java Software Development Kit 1.4.2_08 and prior
                   Sun Java Software Development Kit 1.3.1_15 and prior
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact:            Execute Arbitrary Code/Commands
Access:            Remote/Unauthenticated
CVE Names:         CVE-2005-3906

Ref:               ESB-2005.0962


OVERVIEW:

	US-CERT reports that the Sun Java vulnerability previously described 
	in AusCERT ESB-2005.0962 is now being actively exploited by enticing 
	users to visit a malicious website. [1][2]


IMPACT:

	When a user visits a webpage hosting a malicious Java applet, the 
	remote attacker may execute arbitrary code on the user's computer.
	

MITIGATION:

	System administrators are encouraged to check that workstations have 
	been updated to a non-vulnerable version of the Java Runtime 
	Environment. The vulnerability is fixed in the following Java versions:

	SDK and JRE 1.3.1_16 and later
	SDK and JRE 1.4.2_09 and later
	JDK and JRE 5.0 Update 4 and later

	As always, users should avoid clicking on any links in emails or 
	instant messages, unless the email was already expected beforehand.
	

REFERENCES:

	[1] US-CERT Current Activity
	    http://www.us-cert.gov/current/current_activity.html#javaapi

	[2] AusCERT ESB-2005.0962
	    http://www.auscert.org.au/5804

	[3] Sun Alert ID 102003
	    http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102003-1


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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