CVE-2009-3639 | Date: (C)2009-10-28 (M)2024-02-22 |
The mod_tls module in ProFTPD before 1.3.2b, and 1.3.3 before 1.3.3rc2, when the dNSNameRequired TLS option is enabled, does not properly handle a ' ' character in a domain name in the Subject Alternative Name field of an X.509 client certificate, which allows remote attackers to bypass intended client-hostname restrictions via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
CVSS Score and Metrics +CVSS Score and Metrics -CVSS V2 Severity: |
CVSS Score : 5.8 |
Exploit Score: 8.6 |
Impact Score: 4.9 |
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CVSS V2 Metrics: |
Access Vector: NETWORK |
Access Complexity: MEDIUM |
Authentication: NONE |
Confidentiality: NONE |
Integrity: PARTIAL |
Availability: PARTIAL |
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