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Vulnerability of OpenBSD: Man-in-the-Middle via X.509 Expired Untrusted Issuer Certificates

Synthesis of the vulnerability 

An attacker can act as a Man-in-the-Middle via X.509 Expired Untrusted Issuer Certificates on OpenBSD, in order to read or write data in the session.
Impacted systems: OpenBSD.
Severity of this alert: 2/4.
Creation date: 10/06/2020.
Références of this alert: VIGILANCE-VUL-32507.

Description of the vulnerability 

An attacker can act as a Man-in-the-Middle via X.509 Expired Untrusted Issuer Ce...
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This computer vulnerability alert impacts software or systems such as OpenBSD.

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

The trust level is of type confirmed by the editor, with an origin of internet server.

An attacker with a expert ability can exploit this security vulnerability.

Solutions for this threat 

This vulnerability workaround will be public soon.
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