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CVE
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CVE-2009-0653Date: (C)2009-02-20   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 7.5
Exploit Score: 10.0
Impact Score: 6.4
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality: PARTIAL
Integrity: PARTIAL
Availability: PARTIAL
  
Reference:
http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike
https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf

CPE    1
cpe:/a:openssl:openssl:0.9.6
CWE    1
CWE-287

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