PT-2025-1477 · Fortinet · Fortios

Published 2025-01-14 · Updated 2025-01-17 · CVE-2023-42785

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions FortiOS versions 6.0 through 7.4.1

Description The issue is related to a null pointer dereference in FortiOS, which can be exploited by a remote attacker to trigger a denial of service via a crafted HTTP request. This can allow the attacker to crash the VPN service.

Recommendations For FortiOS versions 6.0 through 7.4.1, consider disabling the HTTP request handling functionality until a patch is available to prevent the denial of service. As a temporary workaround, restrict access to the VPN service to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-01300

CVE-2023-42785

Affected Products

Fortios

References · 8

• https://fortiguard.fortinet.com/psirt/FG-IR-23-293 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42785 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-42785 · Security Note
• https://bdu.fstec.ru/vul/2025-01300 · Security Note
• https://osv.dev/vulnerability/CVE-2023-42785 · Vendor Advisory
• https://fortiguard.com/psirt/FG-IR-23-293 · Note
• https://twitter.com/CVEnew/status/1879174651341131896 · Twitter Post
• https://reddit.com/r/k12cybersecurity/comments/1i1xpbm/msisac_cybersecurity_advisory_multiple · Reddit Post