Novell File Reporter Engine RECORD Tag Parsing Remote Code Execution Vulnerability

2011.07.19
Credit: gwslabs.com
Risk: High
Local: No
Remote: Yes
CWE: CWE-119


CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

ZDI-11-227: Novell File Reporter Engine RECORD Tag Parsing Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-11-227 June 27, 2011 -- CVE ID: CVE-2011-2220 -- CVSS: 9.7, (AV:N/AC:L/Au:N/C:C/I:C/A:P) -- Affected Vendors: Novell -- Affected Products: Novell File Reporter -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 11279. 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 File Reporter Engine. Authentication is not required to exploit this vulnerability. The specific flaw exists within NFREngine.exe which communicates with the Agent component over HTTPS on TCP port 3035. When parsing tags inside the <RECORD> element, the application lacks a size check before pushing strings to a memcpy. An attacker can leverage this to corrupt the thread's stack. This vulnerability can result in remote code execution under the context of the SYSTEM account. -- Vendor Response: Novell has issued an update to correct this vulnerability. More details can be found at: http://download.novell.com/Download?buildid=leLxi7tQACs~ -- Disclosure Timeline: 2011-05-25 - Vulnerability reported to vendor 2011-06-27 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * gwslabs.com -- 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

References:

http://www.zerodayinitiative.com/advisories/ZDI-11-227
http://www.securityfocus.com/archive/1/archive/1/518632/100/0/threaded
http://securitytracker.com/id?1025722
http://secunia.com/advisories/45065
http://download.novell.com/Download?buildid=leLxi7tQACs
~


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