curl can be told to parse a `.netrc` file for credentials. If that file endsin a line with 4095 consecutive non-white space letters and no newline, curlwould first read past the end of the stack-based buffer, and if the readworks, write a zero byte beyond its boundary.This will in most cases cause a segfault or similar, but circumstances might also cause different outcomes.If a malicious user can provide a custom netrc file to an application or otherwise affect its contents, this flaw could be used as denial-of-service.
Se puede indicar a curl que analice un archivo `.netrc` en busca de credenciales. Si ese archivo termina en una línea con 4095 letras de espacios consecutivos que no sean espacios en blanco y sin nueva línea, curl primero leerá más allá del final del búfer basado en pila y, si la lectura funciona, escribirá un byte cero más allá de su límite. En la mayoría de los casos, esto causará una falla de segmento o similar, pero las circunstancias también pueden causar resultados diferentes. Si un usuario malintencionado puede proporcionar un archivo netrc personalizado a una aplicación o afectar su contenido de otra manera, esta falla podría usarse como Denegación de Servicio (DoS).
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-125
|
| [email protected] | Primary |
en
CWE-787
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| haxx | curl | * | <built-in method update of dict object at 0x7fd3843e5580> | Application |
| netapp | clustered_data_ontap | - | <built-in method update of dict object at 0x7fd39c4dee00> | Application |
| netapp | h300s_firmware | - | <built-in method update of dict object at 0x7fd369a4e240> | Operating System |
| netapp | h500s_firmware | - | <built-in method update of dict object at 0x7fd36a139e40> | Operating System |
| netapp | h700s_firmware | - | <built-in method update of dict object at 0x7fd3843e5d00> | Operating System |
| netapp | h410s_firmware | - | <built-in method update of dict object at 0x7fd3843e6cc0> | Operating System |
| apple | macos | * | <built-in method update of dict object at 0x7fd36b1ceb80> | Operating System |
| splunk | universal_forwarder | * | <built-in method update of dict object at 0x7fd385448c00> | Application |
| splunk | universal_forwarder | * | <built-in method update of dict object at 0x7fd341255380> | Application |
| splunk | universal_forwarder | 9.1.0 | <built-in method update of dict object at 0x7fd3843e6700> | Application |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* |