CVE-2009-3455 Security feature bypass in n/a

High 7.5 Published Updated

Man-in-the-middle attackers can spoof SSL servers by exploiting null byte handling in certificate Common Names, bypassing security checks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2009-3455?

CVE-2009-3455 is a high-severity vulnerability in Apple Safari, published on 29 Sep 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-310

Which versions are affected by CVE-2009-3455?

It affects 1 product.

Products include Apple Safari.

How do I fix CVE-2009-3455?

No fix has been published for CVE-2009-3455 yet. Limit exposure of the affected software until one is available.

Is CVE-2009-3455 being exploited?

There is no known exploitation of CVE-2009-3455 in the wild and no public exploit code.

All Apple Safari vulnerabilities

Sources

Also known as GHSA-2hgw-48gj-v3wx.

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