CVE-2024-55594
Fortinet Fortiweb 7.0.0 – 7.4.7
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:LSummary
CVE-2024-55594 is a medium-severity Improper Handling of Syntactically Invalid Structure (CWE-228) vulnerability in Fortinet Fortiweb. Its CVSS base score is 5.6 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 41th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2024-55594 involves an improper handling of syntactically invalid structure (CWE-228) in Fortinet FortiWeb, affecting versions 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, and 7.0.0 through 7.0.10. The vulnerability stems from inadequate processing of malformed structures in HTTP/S requests, enabling attackers to execute unauthorized code or commands.
A remote, unauthenticated attacker (PR:N) can exploit this over the network (AV:N) by sending crafted HTTP/S requests, though it requires high attack complexity (AC:H) and no user interaction (UI:N). Exploitation results in low impacts to confidentiality, integrity, and availability (C:L/I:L/A:L) within the unchanged security scope (S:U), yielding a CVSS v3.1 base score of 5.6.
Fortinet's advisory FG-IR-23-115, available at https://fortiguard.fortinet.com/psirt/FG-IR-23-115, provides details on the vulnerability. Security practitioners should review it for recommended mitigations and patching guidance.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-54079
Vulnerability Data
An improper handling of syntactically invalid structure in Fortinet FortiWeb at least vesrions 7.4.0 through 7.4.6 and 7.2.0 through 7.2.10 and 7.0.0 through 7.0.10 allows attacker to execute unauthorized code or commands via HTTP/S crafted requests.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SI-10 requires validity checks on information inputs, directly stopping syntactically malformed data from being processed without proper handling.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require robust input validation and syntax handling to prevent malformed-structure flaws.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing can detect malformed-input issues but does not itself implement the handling logic.
Secure development life cycle mandates input validation and error handling that directly prevents improper handling of syntactically invalid structures.
Application security requirements include explicit rules for input validation and malformed-data handling.
Secure system architecture principles encourage robust input handling but do not prescribe the specific coding practice.
Secure coding explicitly requires validation of all input syntax and structure, directly eliminating CWE-228.