FortiProxy - RCE (CVE-2024-55591)
164Exploiting IPs reported
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.
CrowdSec analysis
CVE-2024-55591 is a critical vulnerability affecting certain Fortinet products, allowing remote attackers to bypass authentication and obtain super-admin privileges through specially crafted requests exploiting websocket functionality.
CrowdSec has been tracking this vulnerability and its exploits since 10th of March 2025.
Insights from the CrowdSec network reveal that the attackers trying to exploit CVE-2024-55591 are composed of a fairly even mix of opportunistic and targeted actors. Some attackers employ preliminary reconnaissance, while others use indiscriminate scanning. CrowdSec network telemetry also shows that exploitation of CVE-2024-55591 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.
Observed exploitation attempts are focusing on requests to URLs containing /login?redir=/ng.
Exploitation
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Protection
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Blocklist
With our advanced worldwide network detection, CrowdSec can provide a list of IPs known for exploiting the vulnerability.
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