Advisory Details

December 26th, 2010

Novell iPrint Client Netscape Plugin call-back-url Parameter Remote Code Execution Vulnerability

ZDI-10-298
ZDI-CAN-980

CVE ID
CVSS SCORE 9.0, AV:N/AC:L/Au:N/C:P/I:P/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 ['10749']. 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. Authentication is not required to exploit this vulnerability.

The flaw exists within the npnipp.dll Mozilla browser plugin for iPrint client. When assembling a URL using the user supplied call-back-url, the value is passed into a urlencode function where it is copied into a fixed-length buffer on the stack. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser.

ADDITIONAL DETAILS

The fix for this security vulnerability is included in the released "iPrint Client for Windows XP/Vista/Win 7 5.56" patch, available at http://download.novell.com/Download?buildid=JV7fd0tFHHM~.


DISCLOSURE TIMELINE
  • 2010-11-30 - Vulnerability reported to vendor
  • 2010-12-26 - Coordinated public release of advisory
CREDIT Ivan Rodriguez Almuina
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