===================================================================== CERT-Renater Note d'Information No. 2010/VULN570 _____________________________________________________________________ DATE : 30/12/2010 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Novell iPrint Client. ====================================================================== http://www.zerodayinitiative.com/advisories/ZDI-10-295 http://www.zerodayinitiative.com/advisories/ZDI-10-296 http://www.zerodayinitiative.com/advisories/ZDI-10-297 http://www.zerodayinitiative.com/advisories/ZDI-10-298 http://www.zerodayinitiative.com/advisories/ZDI-10-299 http://www.zerodayinitiative.com/advisories/ZDI-10-300 ______________________________________________________________________ ZDI-10-295: Novell iPrint Client Netscape/ActiveX printer-state-reasons Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-295 December 26, 2010 -- CVSS: 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) -- 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 10758. 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 both the Netscape (Firefox) and ActiveX (Internet Explorer) plugin components npnipp.dll and ienipp.ocx which are installed by default with the iPrint client. When handling the printer-state-reasons operation provided via the embed tag the module makes a request to the specified printer-url and performs insufficient validation of the size of the printer-state-reasons status response. The process then copies this 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 states: 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: 2010-12-06 - Vulnerability reported to vendor 2010-12-26 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Ivan Rodriguez Almuina -- 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 ______________________________________________________________________ ZDI-10-296: Novell iPrint Client Netscape/ActiveX IPP Parameter Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-296 December 26, 2010 -- CVSS: 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) -- 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 10749. 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 which is used by both the Mozilla and IE browser plugins for iPrint Client. When handling an IPP response from a user provided printer-url the process does not properly validate the size of the destination buffer and copies user supplied data of an arbitrary length into a fixed length buffer on the heap. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser. -- Vendor Response: Novell states: 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: This vulnerability was discovered by: * Ivan Rodriguez Almuina -- 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 ________________________________________________________________________ ZDI-10-297: Novell iPrint Client Netscape/ActiveX Location Header Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-297 December 26, 2010 -- CVSS: 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) -- 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 10749. 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. Authentication is not required to exploit this vulnerability. The flaw exists within the nipplib.dll component which is used by both the Mozilla and IE browser plugins for iPrint Client. When handling an HTTP 301 response from a user provided printer-url the process attempts to copy the returned value within the Location HTTP header without ensuring that the destination buffer is adequately sized. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser. -- Vendor Response: Novell states: 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: This vulnerability was discovered by: * Ivan Rodriguez Almuina -- 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 _________________________________________________________________ ZDI-10-298: Novell iPrint Client Netscape Plugin call-back-url Parameter Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-298 December 26, 2010 -- CVSS: 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) -- 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 10749. 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. 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. -- Vendor Response: Novell states: 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: This vulnerability was discovered by: * Ivan Rodriguez Almuina -- 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 _____________________________________________________________________ ZDI-10-299: Novell iPrint Client Netscape/ActiveX Plugin Wide Character IPP Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-299 December 26, 2010 -- CVSS: 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) -- 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 10749. 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. Authentication is not required to exploit this vulnerability. The flaw exists within the nipplib.dll component which is used by both the Mozilla and IE browser plugins for iPrint Client. When handling an IPP response from a user provided printer-url the process does not properly validate the size of the destination buffer and copies user supplied data of an arbitrary length 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 states: 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: This vulnerability was discovered by: * Ivan Rodriguez Almuina -- 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 ____________________________________________________________________ ZDI-10-300: Novell iPrint Client Netscape/ActiveX Plugin HTTP_CONNECTION Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-300 December 26, 2010 -- CVSS: 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C) -- 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 10749. 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. Authentication is not required to exploit this vulnerability. The flaw exists within the nipplib.dll component used by the the Mozilla and Internet Explorer browser plugins for iPrint client. When parsing an HTTP response the Connection response length is in sufficiently validated before being 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. -- Vendor Response: Novell states: 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: 2010-11-29 - Vulnerability reported to vendor 2010-12-26 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Ivan Rodriguez Almuina -- 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 ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23 - 25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================