CVE-2021-26105: fortisandbox Memory Corruption — Fix

Description

A stack-based buffer overflow vulnerability (CWE-121) in the profile parser of FortiSandbox version 3.2.2 and below, version 3.1.4 and below may allow an authenticated attacker to potentially execute unauthorized code or commands via specifically crafted HTTP requests.

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CVSS v3.1 Score

6.8

MEDIUM

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

Weakness Type (CWE)

CWE-358 CWE-358

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
fortinet	fortisandbox	3.1.0 — 3.1.4
fortinet	fortisandbox	3.2.0 — 3.2.3
fortinet	fortisandbox	All

References

Advisories & Patches

https://fortiguard.fortinet.com/psirt/FG-IR-20-234

Frequently Asked Questions

What is CVE-2021-26105? +

A stack-based buffer overflow vulnerability (CWE-121) in the profile parser of FortiSandbox version 3.2.2 and below, version 3.1.4 and below may allow an authenticated attacker to potentially execute unauthorized code or commands via specifically crafted HTTP requests. It has a CVSS v3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2021-26105? +

CVE-2021-26105 has a CVSS v3.1 score of 6.8 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-2021-26105? +

CVE-2021-26105 affects products from fortinet, specifically: fortisandbox. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-26105? +

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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