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Internet Security Systems Protection Brief August 26, 2004
Entrust LibKmp Library Buffer Overflow
ISS X-Force has discovered a flaw in the Entrust LibKmp ISAKMP library. This library is used by multiple VPN vendors to facilitate IKE key exchange for IPSEC-based VPN products. LibKmp handles virtually all processing of inbound ISAKMP packets. This library is also responsible for the validation and sanity checking of inbound requests. A flaw exists in these validation routines that results in a buffer overflow vulnerability.
Compromise of VPN servers and enterprise firewalls may lead to exposure of confidential information, loss of productivity, and further network compromise. This flaw may allow attackers to gain complete control over vulnerable VPN servers/firewalls and all data contained therein. Successful exploitation of this vulnerability could also be used to gain unauthorized access to networks being protected by vulnerable VPN/firewall products. default configurations.
For the complete X-Force Protection Alert, please visit: http://xforce.iss.net/xforce/alerts/id/181
Internet Security Systems, Inc. (ISS) is the trusted expert to global enterprises and world governments, providing products and services that protect against Internet threats. An established world leader in security since 1994, ISS delivers proven cost efficiencies and reduces regulatory and business risk across the enterprise for more than 11,000 customers worldwide. ISS products and services are based on the proactive security intelligence conducted by ISS’ X-Force® research and development team – the unequivocal world authority in vulnerability and threat research. Headquartered in Atlanta, Internet Security Systems has additional operations throughout the Americas, Asia, Australia, Europe and the Middle East.
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