CVE-2009-0653

Published: Feb 20, 2009Modified: Apr 23, 2026

7.5

Vector

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

Exploitability: 10.0 / Impact: 6.4

Source: NVD

Description

OpenSSL, probably 0.9.6, does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack, a related issue to CVE-2002-0970.

Affected (1)

Products: Openssl: Openssl

Openssl

1 product

Openssl

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openssl Openssl	Version 0.9.6

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (4)

http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike

Source: cve@mitre.org

https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf

Source: cve@mitre.org

Exploit

http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit

Timeline

No history available yet.