Details of VAR-200209-0033

ID

VAR-200209-0033

CVE

CVE-2002-0853

TITLE

Multiple vendors' Internet Key Exchange (IKE) implementations do not properly handle IKE response packets

Trust: 0.8

sources: CERT/CC: VU#287771

DESCRIPTION

Cisco Virtual Private Network (VPN) Client 3.5.4 and earlier allows remote attackers to cause a denial of service (CPU consumption) via a packet with a zero-length payload. Internet Key Exchange (IKE) implementations from several vendors contain buffer overflows and denial-of-service conditions. The buffer overflow vulnerabilities could permit an attacker to execute arbitrary code on a vulnerable system. This is reported to cause the daemon to crash. This issue may be related to the multiple IKE implementation vulnerabilities described in CERT/CC Vulnerability Note VU#287771. Other vendor products are reported to be affected by similar issues. There are currently not enough details available to determine if PGPFreeware is affected by any of these specific issues. This issue was reported in PGPFreeware 7.03 running on Windows NT 4.0 SP6. The Cisco VPN Client is prone to a remotely exploitable buffer overflow condition. It is possible to trigger this condition by sending malformed IKE packets to the client. The overflow occurs when the Security Parameter Index payload of the IKE packet is longer than 16 bytes in length. It is possible that exploitation of this vulnerability may affect availability of the client, resulting in a denial of service condition. This issue is reported to be exploitable when the client software is operating in Aggressive Mode during a phase 1 IKE exchange. This vulnerability affects versions of the client on all platforms. When vulnerable clients receive a specific IKE packet with a zero length payload, the VPN client will consume all available processor time. The Cisco bug ID for these vulnerabilities is CSCdy26045

Trust: 3.33

sources: NVD: CVE-2002-0853 // CERT/CC: VU#287771 // BID: 5589 // BID: 5668 // BID: 5449 // BID: 5441 // BID: 5443 // BID: 5440 // VULHUB: VHN-5244

AFFECTED PRODUCTS

vendor:	cisco	model:	vpn client	scope:	eq	version:	3.5.2	Trust: 1.6
vendor:	cisco	model:	vpn client	scope:	eq	version:	3.5.1	Trust: 1.6
vendor:	cisco	model:	vpn client for windows	scope:	eq	version:	3.5.1	Trust: 0.9
vendor:	cisco	model:	vpn client for solaris	scope:	eq	version:	3.5.2	Trust: 0.9
vendor:	cisco	model:	vpn client for solaris	scope:	eq	version:	3.5.1	Trust: 0.9
vendor:	cisco	model:	vpn client for mac os	scope:	eq	version:	x3.5.2	Trust: 0.9
vendor:	cisco	model:	vpn client for mac os	scope:	eq	version:	x3.5.1	Trust: 0.9
vendor:	cisco	model:	vpn client for linux	scope:	eq	version:	3.5.2	Trust: 0.9
vendor:	cisco	model:	vpn client for linux	scope:	eq	version:	3.5.1	Trust: 0.9
vendor:	cisco	model:	vpn client for windows	scope:	ne	version:	3.6	Trust: 0.9
vendor:	cisco	model:	vpn client for solaris	scope:	ne	version:	3.6	Trust: 0.9
vendor:	cisco	model:	vpn client for mac os	scope:	ne	version:	x3.6	Trust: 0.9
vendor:	cisco	model:	vpn client for linux	scope:	ne	version:	3.6	Trust: 0.9
vendor:	cisco	model:	-	scope:	-	version:	-	Trust: 0.8
vendor:	netscreen	model:	-	scope:	-	version:	-	Trust: 0.8
vendor:	network associates	model:	-	scope:	-	version:	-	Trust: 0.8
vendor:	openbsd	model:	-	scope:	-	version:	-	Trust: 0.8
vendor:	pgp	model:	-	scope:	-	version:	-	Trust: 0.8
vendor:	safenet	model:	-	scope:	-	version:	-	Trust: 0.8
vendor:	sonicwall	model:	-	scope:	-	version:	-	Trust: 0.8
vendor:	cisco	model:	vpn client for windows	scope:	eq	version:	3.5.2	Trust: 0.6
vendor:	openbsd	model:	openbsd	scope:	eq	version:	3.1	Trust: 0.3
vendor:	openbsd	model:	openbsd	scope:	eq	version:	3.0	Trust: 0.3
vendor:	netscreen	model:	netscreen-remote vpn client	scope:	eq	version:	8.0	Trust: 0.3
vendor:	netscreen	model:	netscreen-remote security client	scope:	eq	version:	8.0	Trust: 0.3
vendor:	netscreen	model:	netscreen-remote vpn client	scope:	ne	version:	8.1	Trust: 0.3
vendor:	netscreen	model:	netscreen-remote security client	scope:	ne	version:	8.1	Trust: 0.3
vendor:	network	model:	associates pgp freeware	scope:	eq	version:	7.0.3	Trust: 0.3

sources: CERT/CC: VU#287771 // BID: 5589 // BID: 5668 // BID: 5449 // BID: 5441 // BID: 5443 // BID: 5440 // CNNVD: CNNVD-200209-021 // NVD: CVE-2002-0853

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2002-0853
value:	MEDIUM
Trust: 1.0
CARNEGIE MELLON:	VU#287771
value:	1.03
Trust: 0.8
CNNVD:	CNNVD-200209-021
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-5244
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2002-0853
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
VULHUB:	VHN-5244
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

sources: CERT/CC: VU#287771 // VULHUB: VHN-5244 // CNNVD: CNNVD-200209-021 // NVD: CVE-2002-0853

PROBLEMTYPE DATA

problemtype:

NVD-CWE-Other

Trust: 1.0

sources: NVD: CVE-2002-0853

THREAT TYPE

network

Trust: 1.8

sources: BID: 5589 // BID: 5668 // BID: 5449 // BID: 5441 // BID: 5443 // BID: 5440

TYPE

Boundary Condition Error

Trust: 1.2

sources: BID: 5668 // BID: 5449 // BID: 5441 // BID: 5443

EXTERNAL IDS

db:	CERT/CC	id:	VU#287771	Trust: 4.0
db:	BID	id:	5440	Trust: 2.8
db:	NVD	id:	CVE-2002-0853	Trust: 1.7
db:	BID	id:	5668	Trust: 1.1
db:	BID	id:	5449	Trust: 1.1
db:	BID	id:	5443	Trust: 1.1
db:	BID	id:	5441	Trust: 1.1
db:	CNNVD	id:	CNNVD-200209-021	Trust: 0.7
db:	XF	id:	9821	Trust: 0.6
db:	CISCO	id:	20020812 CISCO VPN CLIENT MULTIPLE VULNERABILITIES	Trust: 0.6
db:	BID	id:	5589	Trust: 0.3
db:	VULHUB	id:	VHN-5244	Trust: 0.1

sources: CERT/CC: VU#287771 // VULHUB: VHN-5244 // BID: 5589 // BID: 5668 // BID: 5449 // BID: 5441 // BID: 5443 // BID: 5440 // CNNVD: CNNVD-200209-021 // NVD: CVE-2002-0853

REFERENCES

url:	http://www.kb.cert.org/vuls/id/287771	Trust: 4.2
url:	http://www.securityfocus.com/bid/5440	Trust: 2.7
url:	http://www.cisco.com/warp/public/707/vpnclient-multiple-vuln-pub.shtml	Trust: 2.7
url:	http://www.iss.net/security_center/static/9821.php	Trust: 2.7
url:	http://www.ietf.org/html.charters/ipsec-charter.html	Trust: 0.8
url:	http://www.ietf.org/rfc/rfc2408.txt	Trust: 0.8
url:	http://www.ietf.org/rfc/rfc2409.txt	Trust: 0.8
url:	http://www.ietf.org/rfc/rfc2412.txt	Trust: 0.8
url:	http://www.vpnc.org/	Trust: 0.8
url:	http://online.securityfocus.com/bid/5440	Trust: 0.8
url:	http://online.securityfocus.com/bid/5441	Trust: 0.8
url:	http://online.securityfocus.com/bid/5443	Trust: 0.8
url:	http://www.securityfocus.com/bid/5449	Trust: 0.8
url:	http://www.securityfocus.com/bid/5668	Trust: 0.8
url:	http://ikecrack.sourceforge.net/	Trust: 0.8
url:	http://www.nta-monitor.com/ike-scan/	Trust: 0.8
url:	http://www.openbsd.org/errata.html#isakmpd	Trust: 0.3
url:	http://www.netscreen.com/support/alerts/9_6_02.htm	Trust: 0.3

CREDITS

Published in a Cisco Security Advisory. CERT/CC credits Anton Rager of Avaya Communications with discovery.

Trust: 0.9

sources: BID: 5441 // BID: 5443 // BID: 5440

SOURCES

db:	CERT/CC	id:	VU#287771
db:	VULHUB	id:	VHN-5244
db:	BID	id:	5589
db:	BID	id:	5668
db:	BID	id:	5449
db:	BID	id:	5441
db:	BID	id:	5443
db:	BID	id:	5440
db:	CNNVD	id:	CNNVD-200209-021
db:	NVD	id:	CVE-2002-0853

LAST UPDATE DATE

2024-11-22T21:23:50.148000+00:00

SOURCES UPDATE DATE

db:	CERT/CC	id:	VU#287771	date:	2004-02-09T00:00:00
db:	VULHUB	id:	VHN-5244	date:	2008-09-10T00:00:00
db:	BID	id:	5589	date:	2002-07-05T00:00:00
db:	BID	id:	5668	date:	2002-09-07T00:00:00
db:	BID	id:	5449	date:	2002-08-12T00:00:00
db:	BID	id:	5441	date:	2002-08-12T00:00:00
db:	BID	id:	5443	date:	2002-08-12T00:00:00
db:	BID	id:	5440	date:	2002-08-12T00:00:00
db:	CNNVD	id:	CNNVD-200209-021	date:	2005-05-02T00:00:00
db:	NVD	id:	CVE-2002-0853	date:	2024-11-20T23:40:02.007

SOURCES RELEASE DATE

db:	CERT/CC	id:	VU#287771	date:	2002-08-12T00:00:00
db:	VULHUB	id:	VHN-5244	date:	2002-09-05T00:00:00
db:	BID	id:	5589	date:	2002-07-05T00:00:00
db:	BID	id:	5668	date:	2002-09-07T00:00:00
db:	BID	id:	5449	date:	2002-08-12T00:00:00
db:	BID	id:	5441	date:	2002-08-12T00:00:00
db:	BID	id:	5443	date:	2002-08-12T00:00:00
db:	BID	id:	5440	date:	2002-08-12T00:00:00
db:	CNNVD	id:	CNNVD-200209-021	date:	2002-08-12T00:00:00
db:	NVD	id:	CVE-2002-0853	date:	2002-09-05T04:00:00