PT-2021-7570 · Fortinet · Fortiweb

Published 2021-12-07 · Updated 2021-12-10 · CVE-2021-36194

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions FortiWeb versions 6.3.0 through 6.3.15 FortiWeb versions 6.4.0 through 6.4.1

Description The issue is related to multiple stack-based buffer overflows in the API controllers, which may allow an authenticated attacker to achieve arbitrary code execution via specially crafted requests. This can be exploited by a remote attacker to execute arbitrary code using a specially crafted request.

Recommendations For FortiWeb versions 6.3.0 through 6.3.15, update to a version that fixes the buffer overflow issue in the API controllers. For FortiWeb versions 6.4.0 through 6.4.1, update to a version that fixes the buffer overflow issue in the API controllers. As a temporary workaround, consider restricting access to the API controllers to minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2023-00093

CVE-2021-36194

Affected Products

Fortiweb

References · 5

• https://bdu.fstec.ru/vul/2023-00093 · Security Note
• https://fortiguard.com/advisory/FG-IR-21-152 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36194 · Security Note
• https://osv.dev/vulnerability/CVE-2021-36194 · Vendor Advisory
• https://t.me/cvenotify/24450 · Telegram Post