Advisory Details

August 29th, 2012

Novell iPrint nipplib.dll client-file-name Parsing Remote Code Execution Vulnerability

ZDI-12-181
ZDI-CAN-1466

CVE ID CVE-2011-4186
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Novell
AFFECTED PRODUCTS iPrint
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11195. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell iPrint Client. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The flaw exists within the nipplib component which is used by both the ActiveX and Netscape compatible browser plugins as well as the Microsoft Windows spooler service. When handling certain requests the client-file-name parameter is improperly copied to a local stack buffer. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the SYSTEM.

ADDITIONAL DETAILS Novell has issued an update to correct this vulnerability. More details can be found at:
http://www.novell.com/support/kb/doc.php?id=7008708
DISCLOSURE TIMELINE
  • 2011-12-22 - Vulnerability reported to vendor
  • 2012-08-29 - Coordinated public release of advisory
CREDIT Ivan Rodriguez Almuina
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