TPTI-09-11: HP OpenView NNM OvWebHelp.exe CGI Topic Heap Overflow Vulnerability http://dvlabs.tippingpoint.com/advisory/TPTI-09-11 December 9, 2009 -- CVE ID: CVE-2009-4178 -- Affected Vendors: Hewlett-Packard -- Affected Products: Hewlett-Packard OpenView Network Node Manager -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 8354. 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 Hewlett-Packard OpenView Network Node Manager. Authentication is not required to exploit this vulnerability. The specific flaw exists within the OvWebHelp.exe CGI application. During a string concatenation the process takes the value of the Topic POST variable and copies it without any length checks into a static 0x400 byte heap buffer. By providing a large enough string this buffer can be overrun leading to arbitrary code execution. -- 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=c 01950877 -- Disclosure Timeline: 2009-07-20 - Vulnerability reported to vendor 2009-12-09 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Aaron Portnoy, TippingPoint DVLabs