PT-2023-2042 · Fortinet · Fortiweb

Published 2023-02-16 · Updated 2023-02-28 · CVE-2023-23780

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 Fortinet FortiWeb versions 6.3.6 through 6.3.19 Fortinet FortiWeb versions 7.0.0 through 7.0.1 Fortinet FortiWeb 6.4 all versions

Description A stack-based buffer overflow in Fortinet FortiWeb allows an attacker to escalate privileges via specifically crafted HTTP requests. The vulnerability is related to a buffer overflow in memory, which can be exploited by a remote attacker to gain elevated privileges.

Recommendations For Fortinet FortiWeb versions 6.3.6 through 6.3.19, update to a version that fixes the buffer overflow issue. For Fortinet FortiWeb versions 7.0.0 through 7.0.1, update to a version that fixes the buffer overflow issue. For Fortinet FortiWeb 6.4 all versions, update to a version that fixes the buffer overflow issue. As a temporary workaround, consider restricting access to the HTTP endpoint that is vulnerable to the buffer overflow until a patch is available.

Fix

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2023-01759

CVE-2023-23780

Affected Products

Fortiweb

References · 5

• https://osv.dev/vulnerability/CVE-2023-23780 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-23780 · Security Note
• https://fortiguard.com/psirt/FG-IR-22-118 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-01759 · Security Note
• https://t.me/cvenotify/44967 · Telegram Post