-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-181 : Novell iPrint nipplib.dll client-file-name Parsing Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-181 August 29, 2012 - -- CVE ID: CVE-2011-4186 - -- CVSS: 10, AV:N/AC:L/Au:N/C:C/I:C/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 11195. 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 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. - -- Vendor Response: 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: 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 -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 10.2.0 (Build 1950) Charset: utf-8 wsBVAwUBUD4hd1VtgMGTo1scAQJQaAf/QK/dLFxsY7cHBokaZqaeGsO9r6TyGnO6 N2RI1MqpEbv0MB/m7S678CXzNzmrzkHoQA1mqRuQa3/DqHKYWkkj/ZGfchE/mWh2 c0jsNFR7vl0BZruXFVa7R2iLbTVQhJ169Wo4GYTMH0escQFtBGOSk8FFRet2O1Lt DsaaJQhhrR3rcSHlJLbc3BrnbqE16/W6eDpl1yVBo5FkdubRkxO/BqyOLIzPIf5k aewd3r6NKt85HSDGSF9vFNYwrf/gpXpvUqvdlkN/i574yZCgSUPeV/USTIU85YuG FSRn5k/yYpfrJXm9AY5+2r2V5XyOuKEzzY4mVseXIEJIkb0BHUMQYg== =JWv3 -----END PGP SIGNATURE-----