CVE-2020-9295: fortios — Fix

Description

FortiOS 6.2 running AV engine version 6.00142 and below, FortiOS 6.4 running AV engine version 6.00144 and below and FortiClient 6.2 running AV engine version 6.00137 and below may not immediately detect certain types of malformed or non-standard RAR archives, potentially containing malicious files. Based on the samples provided, FortiClient will detect the malicious files upon trying extraction by real-time scanning and FortiGate will detect the malicious archive if Virus Outbreak Prevention is enabled.

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

Weakness Type (CWE)

CWE-358 CWE-358

Affected Products

Vendor	Product	Versions
fortinet	antivirus_engine	< 6.00145
fortinet	fortios	6.2.0 — 6.4.16
fortinet	antivirus_engine	< 6.00145
fortinet	forticlient	6.0.0 — 6.2.6

References

Advisories & Patches

https://fortiguard.com/psirt/FG-IR-20-037

Frequently Asked Questions

What is CVE-2020-9295? +

FortiOS 6.2 running AV engine version 6.00142 and below, FortiOS 6.4 running AV engine version 6.00144 and below and FortiClient 6.2 running AV engine version 6.00137 and below may not immediately detect certain types of malformed or non-standard RAR archives, potentially containing malicious files. Based on the samples provided, FortiClient will detect the malicious files upon trying extraction by real-time scanning and FortiGate will detect the malicious archive if Virus Outbreak Prevention is enabled. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2020-9295? +

CVE-2020-9295 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2020-9295? +

CVE-2020-9295 affects products from fortinet, specifically: antivirus_engine, forticlient, fortios. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2020-9295? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2020-9295