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Vigil@nce - ProFTPD: privilege escalation via CRL Entry Revoked Certificates tls_verify_crl

January 2020 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer-vulnerabilities-watch-and-alert

SYNTHESIS OF THE VULNERABILITY

Impacted products: Fedora, openSUSE Leap, ProFTPD, SLES.

Severity: 2/4.

Consequences: privileged access/rights, user access/rights.

Provenance: user account.

Confidence: confirmed by the editor (5/5).

Creation date: 27/11/2019.

DESCRIPTION OF THE VULNERABILITY

An attacker can bypass restrictions via CRL Entry Revoked
Certificates tls_verify_crl() of ProFTPD, in order to escalate his
privileges.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/ProFTPD-privilege-escalation-via-CRL-Entry-Revoked-Certificates-tls-verify-crl-31008


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