CVE-2022-41333
Published: 07 March 2023
Summary
CVE-2022-41333 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Fortinet Fortirecorder Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 4.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
An uncontrolled resource consumption vulnerability tracked as CWE-400 affects the login authentication mechanism in FortiRecorder versions 6.4.3 and below as well as 6.0.11 and below. The flaw permits remote attackers to exhaust device resources through specially crafted GET requests, resulting in a denial-of-service condition with no authentication or user interaction required. The issue carries a CVSS 3.1 base score of 7.5 reflecting high availability impact over a network vector.
An unauthenticated attacker can repeatedly submit the malicious GET requests to the login interface, rendering the FortiRecorder appliance unavailable until the resource exhaustion subsides or the device is restarted. This attack requires no privileges and can be launched from anywhere on the network that can reach the management interface.
Public references include Fortinet advisory FG-IR-22-388 and a Packet Storm proof-of-concept demonstrating the denial-of-service condition. The associated EPSS score rose from lower values to a peak of 0.3009 on 2026-03-16 before receding to the current 0.1915, indicating that exploitation interest increased after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-44540
Vulnerability details
An uncontrolled resource consumption vulnerability [CWE-400] in FortiRecorder version 6.4.3 and below, 6.0.11 and below login authentication mechanism may allow an unauthenticated attacker to make the device unavailable via crafted GET requests.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Limiting concurrent sessions directly prevents uncontrolled resource consumption by capping the number of active sessions per user or account.
Analysis identifies uncontrolled resource consumption indicative of denial-of-service or abuse attempts.
Contingency plan testing includes resource exhaustion scenarios to verify recovery, making it harder for attackers to sustain exploits that cause uncontrolled consumption.
Updated contingency plans include current procedures to detect, contain, and recover from resource exhaustion, limiting an attacker's ability to sustain impact from uncontrolled consumption.
Alternate site allows resumption of operations if resource exhaustion at the primary site is exploited to cause unavailability.
Alternate telecommunications services enable resumption of essential functions when primary services become unavailable due to uncontrolled resource consumption.
The team can analyze and respond to resource exhaustion incidents, reducing the impact of attacks that exploit uncontrolled consumption weaknesses.
Timely maintenance support and spare parts enable rapid recovery from failures induced by uncontrolled resource consumption, shortening the impact window of denial-of-service attacks.