// For flags

CVE-2021-37253

M-Files Web Denial Of Service

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

4
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

M-Files Web before 20.10.9524.1 allows a denial of service via overlapping ranges (in HTTP requests with crafted Range or Request-Range headers). NOTE: this is disputed because the range behavior is the responsibility of the web server, not the responsibility of the individual web application

** EN DISPUTA ** M-Files Web antes de la versión 20.10.9524.1 permite una denegación de servicio a través de rangos superpuestos (en peticiones HTTP con cabeceras Range o Request-Range manipuladas). NOTA: esto se cuestiona porque el comportamiento de los rangos es responsabilidad del servidor web, no de la aplicación web individual

M-Files Web versions prior to 20.10.9524.1 and M-Files Web versions prior to 20.10.9445.0 contain an improper range header processing vulnerability. A remote unauthenticated attacker may send crafted requests with overlapping ranges (via HTTP requests with a specially-crafted Range or Request-Range headers) to cause the web application to compress each of the requested bytes, resulting in a crash due to excessive memory and CPU consumption and preventing users from accessing the system.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-07-21 CVE Reserved
  • 2021-12-03 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2024-08-20 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
M-files
Search vendor "M-files"
 M-files Web
Search vendor "M-files" for product "M-files Web"
 < 20.10.9524.1
Search vendor "M-files" for product "M-files Web" and version " < 20.10.9524.1"
-
Affected