The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of PolarSSL: accepting a certificate with a CA not authorized for server

Synthesis of the vulnerability 

An attacker can create a malicious certificate, which is accepted as valid by PolarSSL, in order to invite the victim to connect to a server setup as a Man-in-the-Middle.
Vulnerable products: Unix (platform) ~ not comprehensive.
Severity of this weakness: 2/4.
Creation date: 04/04/2014.
Références of this bulletin: VIGILANCE-VUL-14526.

Description of the vulnerability 

The PolarSSL library implements the SSL/TLS protocol. It has to perform checks on X.509 certificates.

However, this library accepts a certificate not authorized to be used for server authentication.

An attacker can therefore create a malicious certificate, which is accepted as valid by PolarSSL, in order to invite the victim to connect to a server setup as a Man-in-the-Middle.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This weakness note impacts software or systems such as Unix (platform) ~ not comprehensive.

Our Vigil@nce team determined that the severity of this threat note is medium.

The trust level is of type multiples sources, with an origin of internet server.

An attacker with a expert ability can exploit this computer weakness.

Solutions for this threat 

Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides application vulnerability analysis. The technology watch team tracks security threats targeting the computer system.