CVE Catalog

CVE-2009-3455

High
Published: Translated: NVD NIST

Summary

Apple Safari on Mac OS X (possibly before version 4.0.3) improperly handles a null character ('\0') in the domain name in the Common Name (CN) field of an X.509 certificate. This allows a man-in-the-middle attacker to spoof any SSL server using a crafted certificate issued by a trusted Certificate Authority.

Risk Assessment

The organization is exposed to man-in-the-middle attacks that can lead to interception of sensitive data, such as passwords or financial information, without the user's knowledge.

Recommendation

Update Apple Safari to version 4.0.3 or later, which includes a fix for this vulnerability.

Related vulnerabilities

Original NVD description (English source)

Apple Safari, possibly before 4.0.3, on Mac OS X does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS