ZDI-11-164: HP 3COM/H3C Intelligent Management Center tftpserver DATA/ERROR Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-11-164 May 10, 2011 -- CVE ID: CVE-2011-1852 -- CVSS: 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C) -- Affected Vendors: Hewlett-Packard -- Affected Products: Hewlett-Packard H3C Intelligent Management Center -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 10905. 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 HP 3COM/H3C Intelligent Management Center. Authentication is not required to exploit this vulnerability. The flaw exists within the tftpserver.exe component which listens by default on UDP port 69. When handling a TFTP packet type 0x03 or 0x05 (DATA or ERROR) the process blindly copies 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 SYSTEM user. -- Vendor Response: Hewlett-Packard has issued an update to correct this vulnerability. More details can be found at: http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02822750 -- Disclosure Timeline: 2010-12-01 - Vulnerability reported to vendor 2011-05-10 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Luigi Auriemma -- 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 _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/