sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Published 2010-01-04 21:30:01
Updated 2017-09-19 01:30:00
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2009-4565

Threat overview for CVE-2009-4565

Top countries where our scanners detected CVE-2009-4565
Top open port discovered on systems with this issue 80
IPs affected by CVE-2009-4565 660
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2009-4565!
*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-2009-4565

0.54%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-4565

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST

CWE ids for CVE-2009-4565

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

Vendor statements for CVE-2009-4565

  • Red Hat 2010-01-21
    Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2009-4565 The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.

References for CVE-2009-4565

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