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Apple Mac OS X mDNSResponder UPnP IGD buffer overflow

Notification Type:	IBM Internet Security Systems Protection Alert
Notification Date:	May 24, 2007
Notification Version:	1.0

Name:	Apple Mac OS X mDNSResponder UPnP IGD buffer overflow
Public disclosure/ In the wild date:	May 24, 2007 (vuln disclosure)
CVE:	CVE-2007-2386
Description:	Apple Mac OS X is vulnerable to a buffer overflow in the UPnP IGD (Internet Gateway Device Standardized Device Control Protocol) code of the mDNSResponder implementation.

ISS Coverage

Product	Content Version
Network Sensor 7.0 Proventia A Proventia IPS (G/GX) Server Sensor 7.0 Proventia Multifunction Appliance Proventia Server (Linux)	Firmware 1.2 and later: 1.97 Prior to firmware 1.2: 24.58
Proventia Server (Windows) Proventia Desktop	x.x.x.1980
RealSecure Desktop 7.0	EQC
BlackICE PC Protection 3.6	CQC

Propagation Techniques	ISS Protection	Available
remote exploit	UPnP_Request_Overflow	April, 8, 2007

Detailed Description

Business Impact:	This exploit allows an attacker to obtain complete control over the target system.
CVSS:	Base Score:		8
		Access Vector:	Remote
		Access Complexity:	High
		Authentication:	Not Required
		Confidentiality Impact:	Complete
		Integrity Impact:	Complete
		Availability Impact:	Complete
		Impact Bias:	Normal
	Adjusted Temporal Score:		5.9
		Exploitability:	Unproven
		Remediation Level:	Official Fix
		Report Confidence:	Confirmed
Affected Products:	Apple Computer, Inc.: Mac OS X 10.4 - 10.4.9 Apple Computer, Inc.: Mac OS X Server 10.4 - 10.4.9
Technical Description:	Apple Mac OS X is vulnerable to a buffer overflow in the UPnP IGD (Internet Gateway Device Standardized Device Control Protocol) code of the mDNSResponder implementation. By sending a specially-crafted packet to a vulnerable system, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges
Remediation:	Apply Apple Security Update 2007-005, available from the Apple Web site. See References. If you cannot immediately install the patch, you can disable the affected component by using the following command: sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist To re-enable the component use: sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist Disabling this component disables many other features: Printing with Auto Discovery, Airport and Airport Express, AirTunes, sharing iTunes music, calendars, address books, etc. More discussion about using this workaround is available at: http://www.macosxhints.com/article.php?story=20050707222434355

References

XFDB	http://xforce.iss.net/xforce/xfdb/34493
Apple	http://docs.info.apple.com/article.html?artnum=305530

Revision History

1.0	Initial publication.

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