CVE-2021-43073

published 2022-02-02

CVE-2021-43073: A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and…

Priority P2 61 high 8.8 CVSS 3.1

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

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWeb version 6.4.1 and 6.4.0, version 6.3.15 and below, version 6.2.6 and below allows attacker to execute unauthorized code or commands via crafted HTTP requests.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
fortinet	fortinet	—	—
fortinet	fortiweb	—	—
fortinet	fortiweb	>= 5.8.0 < 6.2.7	6.2.7
fortinet	fortiweb	>= 6.3.0 < 6.3.17	6.3.17
fortinet	fortiweb	>= 6.4.0 < 6.4.2	6.4.2

Detection & IOCs extracted from sources · hover to see the quote

• → Vulnerability is triggered via crafted HTTP requests to Fortinet FortiWeb; monitor for anomalous or malformed HTTP requests targeting FortiWeb management interfaces ↗
• → Classify as OS Command Injection (CWE-78) in FortiWeb; detection logic should focus on HTTP request parameters that may pass unsanitized input to OS-level commands ↗

• · Affected FortiWeb versions are 6.4.1, 6.4.0, 6.3.15 and below, and 6.2.6 and below; ensure detection and patching scope covers all these branches ↗

CVSS provenance

nvd v3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 6.5 MEDIUM AV:N/AC:L/Au:S/C:P/I:P/A:P

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CWE-78