CVE-2009-3639
Last modified
CVE-2009-3639 is a vulnerability of currently unknown severity. 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 '\0' 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.. EPSS estimates a 5.70% chance of exploitation in the next 30 days.
Description
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 '\0' 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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Proftpd | Proftpd | <= 1.3.2 | A |
| Proftpd | Proftpd | 1.3.1 | — |
| Proftpd | Proftpd | 1.3.2 | — |
| Proftpd | Proftpd | 1.3.3 | Rc1 |
References
- http://secunia.com/advisories/37131Vendor Advisory
- http://secunia.com/advisories/37131Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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