02 November 2011
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.1095 Novell iPrint Client nipplib.dll GetDriverSettings Remote Code Execution Vulnerability 2 November 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Novell iPrint Client Publisher: Zero Day Initiative Operating System: Windows Netware Linux variants Mac OS X Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2011-3173 Original Bulletin: http://www.zerodayinitiative.com/advisories/ZDI-11-309 - --------------------------BEGIN INCLUDED TEXT-------------------- ZDI-11-309 : Novell iPrint Client nipplib.dll GetDriverSettings Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-11-309 October 26, 2011 - -- CVE ID: CVE-2011-3173 - -- CVSS: 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P - -- Affected Vendors: Novell - -- Affected Products: Novell iPrint - -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 11719. For further product information on the TippingPoint IPS, visit: 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.dll component. When handling the exposed method GetDriverSettings the application assembles a string for logging consisting of the hostname/port provided as a parameter. When building this message the process will blindly copy user supplied data 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. - -- Vendor Response: Novell has issued an update to correct this vulnerability. More details can be found at: http://download.novell.com/Download?buildid=3DbSpj4nhVEZ0~ - -- Disclosure Timeline: 2011-07-21 - Vulnerability reported to vendor 2011-10-26 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * gwslabs.com * Anonymous - -- About the Zero Day Initiative (ZDI): Established by TippingPoint, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ Follow the ZDI on Twitter: http://twitter.com/thezdi - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org 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. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBTrC7T+4yVqjM2NGpAQLGVw/7BupuhIdHS9CQBz8BS10FPf0Wi7Hztjo6 4edWzI4n6brGljYGF/XTQGpFYWwtpL/dKQfY8otHQkq+xyGyD9FIvZOiSSYlVLQp opLA+Zu3znIOCZm3fTFyk66WGpvQFUqp/oezYvvHwbstiPMBNjQNO+4RtLT4FXHq sIBwTZxo7gL7zRCJ2Irev5+rwXVCYJTZt/yZdG8r6oBaaKJf6qKbyNWU6xlxzZJj fx5goNyiHCxR3pOAIimhBXrUOlO8z1lyb9X/d3u6SqWUMRBuK2mrv12CS96q3C5w tJhymhdjYbm5YxddWEGk6rIUrZo7f8oLuZ4lLGV/6eSXvOGrEI2Rv19GGOSSna7b 5sWZ0GVbAuuBjwj8axa9C+sFYvFoCDAQPPXrZFH1MjbuNTr46LgUTlYhtZRNBfCB +SAl0ueYBZ80w9sbijX6ehyGK1NUZUSnymX4/PbPEksMbXNWpGurvaX9Bnhadz1E GRDH9kdj78Qsis693eFHn5bmDv+4+xN4o834kiP+Wjc1FL1D/+a8sBd04f0pNzBS gMiVcP6PHSSqZpmxy4UfO1qgPZBosWPNJohngvJrH14zyvvIOX3RktmAuf89Acvz V1es8gEC7Y86dIZLYEWQHMrdAshVmldiXjDIALcdpAu2hzL/hB/x3UFbQDkpA6aH yHRZBIO5oqM= =KeGY -----END PGP SIGNATURE-----