PT-2019-1672 · Fortinet · Fortios

Published 2019-01-11 · Updated 2019-02-08 · CVE-2018-1352

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions FortiOS version 5.6.0

Description The issue is caused by a format string vulnerability in the handling of the username variable when connecting via SSH. This vulnerability may allow a remote attacker to execute unauthorized code or commands, potentially leading to memory corruption.

Recommendations For FortiOS version 5.6.0, consider restricting access to SSH connections until a patch is available. As a temporary workaround, avoid using the username variable in SSH connections to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use of Externally-Controlled Format String

Weakness Enumeration

CWE-134

Related Identifiers

BDU:2019-01220

CVE-2018-1352

Affected Products

Fortios

References · 5

• https://osv.dev/vulnerability/CVE-2018-1352 · Vendor Advisory
• https://fortiguard.com/advisory/FG-IR-18-018 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-1352 · Security Note
• https://bdu.fstec.ru/vul/2019-01220 · Security Note
• https://fortiguard.com/psirt/FG-IR-18-018 · Note