OpenBSD ISAKMP daemon INITIAL-CONTACT could allow an attacker to delete IPsec SAs
| openbsd-isakmp-initialcontact-delete-sa (14118) |  Medium Risk |
Description:
The OpenBSD ISAKMP daemon (isakmpd) could allow a remote attacker to delete an arbitrary IPsec SA (Security Association). Isakmpd deletes the IPsec SA that is pointing to the source IP address of a ISAKMP message and associated IPsec SAs, upon receipt of an INITIAL-CONTACT status notification that is chained to a specific payload. 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.
Platforms Affected:
- KAME Project, Racoon
- NetBSD, NetBSD 1.6
- NetBSD, NetBSD 1.6.1
- NetBSD, NetBSD CURRENT
- OpenBSD, OpenBSD
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
Remedy:
For NetBSD-current (dated prior to 2004-01-17) and 1.6 branch:
Upgrade to the appropriate fixed versions of NetBSD, as listed in NetBSD Security Advisory 2004-001. See References.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Thu Jan 01 2004 - 14:20:18 CST , Re: multiple payload handling flaws in isakmpd, again at http://archives.neohapsis.com/archives/bugtraq/2003-12/0349.html.
- BugTraq Mailing List, Tue Jan 13 2004 - 15:39:40 CST, unauthorized deletion of IPsec (and ISAKMP) SAs in racoon at http://archives.neohapsis.com/archives/bugtraq/2004-01/0100.html.
- BugTraq Mailing List, Wed Dec 31 2003 - 16:38:58 CST, multiple payload handling flaws in isakmpd, again at http://archives.neohapsis.com/archives/bugtraq/2003-12/0350.html.
- NetBSD Security Advisory 2004-001, Insufficient packet validation in racoon IKE daemon at http://mail-index.netbsd.org/netbsd-announce/2004/02/19/0000.html.
- BID-10496: OpenBSD ISAKMPD Security Association Piggyback Delete Payload Denial Of Service Vulnerability
- BID-9334: ISAKMPD "Initial Contact" Notification SA Deletion Vulnerability
- BID-9416: KAME Racoon "Authentication" SA Deletion Vulnerability
- BID-9417: KAME Racoon "Initial Contact" SA Deletion Vulnerability
- BID-9436: OpenBSD 3.4 Crypto Card Handlers File Descriptor Leak Vulnerability
- 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
Reported:
Dec 31, 2003
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