CVE-2012-6399 Security feature bypass in n/a

Medium 5.8 Published 27 May 2013 Updated 16 Sep 2024

Man-in-the-middle attackers can spoof SSL servers and intercept data because the Cisco WebEx iOS app fails to verify server hostnames against X.509 certificates.

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-2012-6399?

CVE-2012-6399 is a medium-severity vulnerability in n/a, published on 27 May 2013. 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

Cisco WebEx 4.1 on iOS does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, aka Bug ID CSCud94176.

Weakness: CWE-20

Which versions are affected by CVE-2012-6399?

It affects 1 product.

Products include Cisco Webex.

How do I fix CVE-2012-6399?

No fix has been published for CVE-2012-6399 yet. Limit exposure of the affected software until one is available.

Is CVE-2012-6399 being exploited?

There is no known exploitation of CVE-2012-6399 in the wild and no public exploit code.

Sources

Also known as GHSA-h5x3-v9f7-g9fh.