-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ZDI-12-167 : (0Day) Novell File Reporter NFRAgent.exe VOL Tag Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-12-167 August 29, 2012 - -- CVE ID: - -- CVSS: 10, AV:N/AC:L/Au:N/C:C/I:C/A:C - -- Affected Vendors: Novell - -- Affected Products: Novell File Reporter - -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell File Reporter Agent. Authentication is not required to exploit this vulnerability. The specific flaw exists within NFRAgent.exe which communicates with the Agent component over HTTPS on TCP port 3037. When parsing tags inside the VOL element, the process performs insufficient bounds checking on user-supplied data prior to copying it into a fixed-length buffer on the stack. This vulnerability can result in remote code execution under the context of the SYSTEM account. - -- Vendor Response: - -- Mitigation: Given the stated purpose of File Reporter, and the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the service to trusted machines. Only the clients and servers that have a legitimate procedural relationship with the Novell File Reporter Agent should be permitted to communicate with it. This could be accomplished in a number of ways, most notably with firewall rules/whitelisting. These features are available in the native Windows Firewall, as described in http://technet.microsoft.com/en-us/library/cc725770%28WS.10%29.aspx and numerous other Microsoft Knowledge Base articles. - -- Disclosure Timeline: 2011-10-21 - Vulnerability reported to vendor 2012-08-29 - 0Day advisory released in accordance with the ZDI 180 day deadline policy - -- Credit: This vulnerability was discovered by: * Tenable Network Security - -- 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 wsBVAwUBUD4cB1VtgMGTo1scAQKcZAf9G6c0ylCbFg5nDqGKzP3BeeVmCW+nNpEc hSGsakkN+4XwNg46Ujl4YkkWiMHK+ii11jz95K5ieOiNgSHoCRYg0N13lZCNfY4j 2g0dxjPzuvcFBUVH0DG9c24n+IM3RZKlxeOHjwPUPXdii7zsskmzJHpDoVqs5IBM Y+m9jVEbQ7j8KS5HMZ5PyNDh1Pq7PsW1/wrGuFPeXfcMe7SdrhD28OSrmfr5qk36 mUsJtwDtHNB9B8wrP+iLkUvVVypAPc08ibEwel/jnsDTwPOyxD6szBPMYRM8Y7e5 E7Rf7wEIRgWG1JqMWS6Ig/ywj8p4hnGFrBw+BGDAoQEiiWYPCVWTEw== =evGX -----END PGP SIGNATURE-----