A vulnerability exists in the isakmpd that could allow a remote attacker to cause a denial of service.
The OpenBSD isakmpd establishes security associations for encrypted and authenticated (IPsec) network traffic. It implements the Internet Security Association and Key Management Protocol (ISAKMP) and Internet Key Exchange (IKE) protocol. The ISAKMP standard specifies:
The Delete Payload contains a protocol-specific security association identifier that the sender has removed from its security association database and is, therefore, no longer valid. [...] It is possible to send multiple Security Parameter Index(es) (SPIs) in a Delete payload [...]
A remote attacker could cause the isakmpd service to crash. Subsequent IPsec-enabled communications may be disrupted as a result.
Apply a patch from the vendor
This vulnerability was discovered by Rapid7 using their Striker test suite.
This document was written by Chad R Dougherty based on information published in Rapid7 Advisory R7-0018.
|Date First Published:||2004-08-27|
|Date Last Updated:||2004-08-27 13:26 UTC|