Symantec Dynamic VPN Services: ISAKMP Denial of Service

SUMMARY The NISCC National Infrastructure Security Co-ordination Centre a UK-sponsored inter-departmental agency has identified nearly five-thousand potential ISAKMP vulnerabilities. Test for these vulnerabilities were created by the NISCC and distributed to an unspecified number of vendors...

Re: multiple payload handling flaws in isakmpd, again

There is one important thing I forgot to mention. In isakmpd deleting an IPsec SA also means deleting the appropriate IPsec policy in almost any case. Take a look at pfkeyv2deletespi in pfkeyv2.c. It calls pfkeyv2disablesa, the policy eraser ;-, if the SA was not acquired through the kernel: if...