OpenBSD ISAKMP daemon Invalid SPI could allow an attacker to delete IPsec SAs
|openbsd-isakmp-invalidspi-delete-sa (14117)||Medium Risk|
The OpenBSD ISAKMP daemon (isakmpd) could allow a remote attacker to delete an arbitrary IPsec SA (Security Association). Isakmpd deletes the IPsec SA specified by the SPI (Security Parameters Index) and associated IPsec SAs, upon receipt of an invalid security parameter index error (Invalid SPI). A remote attacker could send a specially-crafted ISAKMP message from a specific IP address to delete arbitrary IPsec SAs.
Note: Racoon, which is a key management daemon that negotiates and configures a set of parameters of IPsec, is also affected by this vulnerability.
Apply the appropriate patch for your system. See References.
- BugTraq Mailing List, Thu Jan 01 2004 - 14:20:18 CST : Re: multiple payload handling flaws in isakmpd, again.
- BugTraq Mailing List, Tue Jan 13 2004 - 15:39:40 CST: unauthorized deletion of IPsec (and ISAKMP) SAs in racoon.
- BugTraq Mailing List, Wed Dec 31 2003 - 16:38:58 CST: multiple payload handling flaws in isakmpd, again.
- BID-9333: ISAKMPD "Invalid SPI" SA Deletion Vulnerability
- BID-9416: KAME Racoon "Authentication" SA Deletion Vulnerability
- BID-9417: KAME Racoon "Initial Contact" SA Deletion Vulnerability
- BID-9731: Multiple Apple Mac OS X Local And Remote Vulnerabilities
- CVE-2004-0164: KAME IKE daemon (racoon) does not properly handle hash values, which allows remote attackers to delete certificates via (1) a certain delete message that is not properly handled in isakmp.c or isakmp_inf.c, or (2) a certain INITIAL-CONTACT message that is not properly handled in isakmp_inf.c.
- RHSA-2004-165: ipsec-tools security update
- KAME Project Racoon
- OpenBSD OpenBSD
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 3 ES
Dec 31, 2003
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