-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-031 : Novell iPrint Server attributes-natural-language Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-031 February 8, 2012 - -- CVE ID: CVE-2011-4194 - -- 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 12044. 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 Server. Authentication is not required to exploit this vulnerability. The flaw exists within the mod_ipp apache module component of the iprint-server, which listens by default on 631/tcp. During the handling of get-printer-attributes requests containing a attributes-natural-language attribute cause a validation routine to be hit. When validating this parameter the contents of the attribute are copied, without validation, to a fixed length buffer on the stack. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the process. - -- Vendor Response: Novell has issued an update to correct this vulnerability. More details can be found at: http://www.novell.com/support/viewContent.do?externalId=7010084 - -- Disclosure Timeline: 2011-10-21 - Vulnerability reported to vendor 2012-02-08 - Coordinated public release of advisory - -- Credit: This vulnerability was discovered by: * G. Geshev - -- 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: GnuPG v2.0.17 (MingW32) iQEcBAEBAgAGBQJPMrThAAoJEFVtgMGTo1sc1DUIALpj8mb+wwg0LGvXHL5e7OMU MKOZf8729yXQAp0Jxp0cFmyOLgvMwDigiU5EONJUJzklvd0zRvv0O56BC2MZnEhM VjIaRE252cGKA/DK7pJNKlEKRqyRzuIUO4Vn8yW0EiqCN/JLDGEf2f7v97rWwWm3 QM/2/IdXE1nPFIR+Xtgwr4IgKx/sN22LhSClLMVUpSSa4hmzR9CJ66AcACmuOw3c U/uoIJsOWpOil7xOjwL0fzDD+SG/LhW/43mNhZW95GYUn5Q+HGD01pOa8b7ldo/8 xGQbeodff/aDkugbb80iuh/sd1/GRzhV6smSymGz6Np/6e6SB6XlIQsMkrU60sM= =+cei -----END PGP SIGNATURE-----
