| 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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