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.
Published 2009-10-28 14:30:00
Updated 2017-08-17 01:31:13
Source Red Hat, Inc.
View at NVD,   CVE.org

Threat overview for CVE-2009-3639

Top countries where our scanners detected CVE-2009-3639
Top open port discovered on systems with this issue 21
IPs affected by CVE-2009-3639 46,128
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2009-3639!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2009-3639

0.47%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-3639

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.8
MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:P
8.6
4.9
NIST

CWE ids for CVE-2009-3639

  • Assigned by: nvd@nist.gov (Primary)

Products affected by CVE-2009-3639

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