BusyBox wget thru 1.3.7 accepted raw CR (0x0D)/LF (0x0A) and other C0 control bytes in the HTTP request-target (path/query), allowing the request line to be split and attacker-controlled headers to be injected. To preserve the HTTP/1.1 request-line shape METHOD SP request-target SP HTTP/1.1, a raw space (0x20) in the request-target must also be rejected (clients should use %20).
BusyBox wget hasta la versión 1.3.7 aceptaba CR (0x0D)/LF (0x0A) sin procesar y otros bytes de control C0 en el *request-target* HTTP (ruta/consulta), lo que permitía dividir la línea de solicitud e inyectar encabezados controlados por el atacante. Para preservar la forma de la línea de solicitud HTTP/1.1 *MÉTODO SP request-target SP HTTP/1.1*, un espacio sin procesar (0x20) en el *request-target* también debe ser rechazado (los clientes deben usar %20).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | LOW |
| Integrity Impact | LOW |
| Availability Impact | NONE |
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Type: Secondary
Exploitability Score: 3.9
Impact Score: 2.5
| Source | Type | Description |
|---|---|---|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary |
en
CWE-284
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| busybox | busybox | * | <built-in method update of dict object at 0x7f75faee8e80> | Application |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:* |