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 expired in its timezone

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 systems: Unix (platform) ~ not comprehensive.
Severity of this threat: 2/4.
Creation date: 04/04/2014.
Références of this weakness: VIGILANCE-VUL-14528.

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 with a expired validity date in its timezone.

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 computer vulnerability impacts software or systems such as Unix (platform) ~ not comprehensive.

Our Vigil@nce team determined that the severity of this weakness bulletin 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 weakness.

Solutions for this threat 

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

Computer vulnerabilities tracking service 

Vigil@nce provides an application vulnerability database. The Vigil@nce vulnerability database contains several thousand vulnerabilities.