Vulnerability Monitor

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CVE-2002-1106

Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that certificate DN fields match those of the certificate from the VPN Concentrator, which allows remote attackers to conduct man-in-the-middle attacks.

Published

2002-10-04T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cisco	vpn_client	2.0	Yes
Application	cisco	vpn_client	3.0	Yes
Application	cisco	vpn_client	3.1	Yes
Application	cisco	vpn_client	3.5.1	Yes

References

http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/5652 Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/10045 ([email protected])
http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/5652 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/10045 (af854a3a-2127-422b-91ae-364da2661108)