PT-2023-2755 · Fortinet · Fortiproxy+1

Published 2023-04-13 · Updated 2023-05-15 · CVE-2023-22640

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions FortiOS versions 6.0 through 7.2.3 FortiProxy versions 1.0 through 7.2.1

Description The issue is related to an out-of-bounds write in the sslvpnd service of FortiOS and FortiProxy, allowing an authenticated attacker to execute unauthorized code or commands via specifically crafted requests. This may enable arbitrary code execution.

Recommendations For FortiOS versions 6.0 through 7.2.3, update to a version that includes the fix for this issue. For FortiProxy versions 1.0 through 7.2.1, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the sslvpnd service to minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2023-02603

CVE-2023-22640

Affected Products

Fortios

Fortiproxy

References · 6

• https://osv.dev/vulnerability/CVE-2023-22640 · Vendor Advisory
• https://fortiguard.com/psirt/FG-IR-22-475 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-22640 · Security Note
• https://bdu.fstec.ru/vul/2023-02603 · Security Note
• https://t.me/cibsecurity/63268 · Telegram Post
• https://t.me/cvenotify/49771 · Telegram Post