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

August 29th, 2012
ZDI-12-181 ZDI-CAN-1466

CVE ID

CVE-2011-4186

CVSS Score

10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors

Novell

Affected Products

iPrint

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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