Overview
Recently, NSFOCUS CERT found that Fortinet officially issued a security notice to fix a Fortinet FortiOS and FortiProxy remote code execution vulnerability (CVE-2023-25610). Due to the heap buffer underflow flaw in the management interface of FortiOS and FortiProxy, an unauthenticated remote attacker can execute arbitrary code on the target device or perform a DoS attack on the GUI by sending a specially crafted request to the target system. Affected users are requested to take protective measures as soon as possible.
Reference link: https://www.fortiguard.com/psirt/FG-IR-23-001
Scope of Impact
Affected version
- 7.2.0 <= FortiOS <= 7.2.3
- 7.0.0 <= FortiOS <= 7.0.9
- 6.4.0 <= FortiOS <= 6.4.11
- 6.2.0 <= FortiOS <= 6.2.12
- 6.0.0 <= FortiOS <= 6.0.16
- 7.2.0 <= FortiProxy <= 7.2.2
- 7.0.0 <= FortiProxy <= 7.0.8
- 2.0.0 <= FortiProxy <= 2.0.12
- 1.2.0 <= FortiProxy <= 1.2.13
- 1.1.0 <= FortiProxy <= 1.1.6
- FortiOS-6K7K = 7.0.5
- 6.4.2 <= FortiOS-6K7K <= 6.4.10
- 6.2.4 <= FortiOS-6K7K <= 6.2.12
Unaffected version
- FortiOS >= 7.4.0
- FortiOS >= 7.2.4
- FortiOS >= 7.0.10
- FortiOS >= 6.4.12
- FortiOS >= 6.2.13
- FortiProxy >= 7.2.3
- FortiProxy >= 7.0.9
- FortiOS-6K7K >= 7.0.10
- FortiOS-6K7K >= 6.4.12
- FortiOS-6K7K >= 6.2.13
Mitigation
Official upgrade
At present, the official has released a new version to fix the above-mentioned vulnerabilities. Please upgrade to the latest version as soon as possible for affected users.
Official download link:
https://docs.fortinet.com/product/FortiProxy/7.2
https://docs.fortinet.com/product/fortigate/7.2
Other suggestion
If the relevant users are temporarily unable to perform the upgrade operation, the following temporary mitigation measures can be carried out:
- Disable HTTP/HTTPS management interface
- Use a whitelist to restrict access to affected system ports. For details, please refer to: https://www.fortiguard.com/psirt/FG-IR-23-001
Statement
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.
About NSFOCUS
NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks. The company’s Intelligent Hybrid Security strategy utilizes both cloud and on-premises security platforms, built on a foundation of real-time global threat intelligence, to provide multi-layered, unified and dynamic protection against advanced cyber attacks.
NSFOCUS works with Fortune Global 500 companies, including four of the world’s five largest financial institutions, organizations in insurance, retail, healthcare, critical infrastructure industries as well as government agencies. NSFOCUS has technology and channel partners in more than 60 countries, is a member of both the Microsoft Active Protections Program (MAPP), and the Cloud Security Alliance (CSA).
A wholly owned subsidiary of NSFOCUS Technologies Group Co., Ltd., the company has operations in the Americas, Europe, the Middle East and Asia Pacific.
