CVE-2024-4056: 
M-Files Server vulnerability analysis and mitigation

CVE-2024-4056 is a denial of service vulnerability affecting M-Files Server in versions before 24.4.13592.4 and after 23.11 (excluding 24.2 LTS). The vulnerability was discovered and disclosed on April 26, 2024, allowing unauthenticated users to consume computing resources (M-Files Advisory).

The vulnerability is classified as CWE-1333: Inefficient Regular Expression Complexity, which can lead to excessive time consumption in processing certain input values. The vulnerability has been assigned a CVSS v3.1 Base Score of 7.5 (HIGH) with a vector string of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating network accessibility, low attack complexity, and no required privileges or user interaction (M-Files Advisory).

When exploited, this vulnerability can cause a denial of service condition by consuming excessive computing resources on the M-Files Server. The impact is primarily focused on system availability, with no direct effect on confidentiality or integrity (M-Files Advisory).

The vulnerability has not been publicly disclosed or exploited in the wild, with the probability of exploitation assessed as low. It was discovered internally by M-Files (M-Files Advisory).

Users should upgrade to M-Files Server version 24.4.13592.4 or later to address this vulnerability. Alternatively, users can use M-Files Server 24.2 LTS which is not affected by this vulnerability (M-Files Advisory).