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Vulnerability of OpenSSH: privilege escalation via Scp Desynchronised When Utimes Fails

Synthesis of the vulnerability 

An attacker can bypass restrictions via Scp Desynchronised When Utimes Fails of OpenSSH, in order to escalate his privileges.
Vulnerable systems: OpenSSH.
Severity of this threat: 1/4.
Creation date: 08/06/2020.
Références of this weakness: VIGILANCE-VUL-32462.

Description of the vulnerability 

An attacker can bypass restrictions via Scp Desynchronised When Utimes Fails of OpenSSH, in order to escalate his privileges.
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This computer vulnerability announce impacts software or systems such as OpenSSH.

Our Vigil@nce team determined that the severity of this cybersecurity bulletin is low.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this threat alert.

Solutions for this threat 

OpenSSH: version 8.3.
The version 8.3 is fixed:
  https://www.openssh.com/

Copssh: version 7.3.0.
The version 7.3.0 is fixed:
  https://www.itefix.net/
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Computer vulnerabilities tracking service 

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