| ID |
CVE-2021-42717
|
| Sažetak |
ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4. |
| Reference |
|
| CVSS |
| Base: | 5.0 |
| Impact: | 2.9 |
| Exploitability: | 10.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| NONE |
NONE |
PARTIAL |
|
| CVSS vektor |
AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Zadnje važnije ažuriranje |
03-07-2025 - 20:59 |
| Objavljeno |
07-12-2021 - 22:15 |