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Test ID:1.3.6.1.4.1.25623.1.0.105727
Category:FortiOS Local Security Checks
Title:Fortinet FortiGate RSA-CRT Key Leak Vulnerability (FG-IR-16-008)
Summary:FortiOS now includes for all SSL libraries a countermeasure; against Lenstra's fault attack on RSA-CRT optimization when a RSA signature is corrupted.
Description:Summary:
FortiOS now includes for all SSL libraries a countermeasure
against Lenstra's fault attack on RSA-CRT optimization when a RSA signature is corrupted.

Affected Software/OS:
Fortinet FortiGate prior to version 5.0.13 and version 5.2.0
through 5.2.5, with the SSLVPN web portal feature configured.

Solution:
Update to version 5.0.13, 5.2.6, 5.4.0 or later.

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-5738
https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf
CopyrightCopyright (C) 2016 Greenbone AG

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