CVE-2020-10924
NETGEAR R6700 UPnP NewBlockSiteName Stack-based Buffer Overflow Remote Code Execution Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9643.
Esta vulnerabilidad permite a atacantes adyacentes a la red omitir la autenticación en las instalaciones afectadas de los enrutadores NETGEAR R6700 versión V1.0.4.84_10.0.58. Aunque es requerida una autenticación para aprovechar esta vulnerabilidad, el mecanismo de autenticación existente puede ser omitido. El fallo específico se presenta dentro del servicio UPnP, que escucha en el puerto TCP 5000 por defecto. El problema resulta de una falta de comprobación apropiada de la longitud de los datos suministrados por el usuario antes de copiarlos en un búfer en la región stack de la memoria de longitud fija. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto de root. Fue ZDI-CAN-9643
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-03-24 CVE Reserved
- 2020-06-15 CVE Published
- 2024-08-04 CVE Updated
- 2024-10-23 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-121: Stack-based Buffer Overflow
CAPEC
References (1)
URL | Tag | Source |
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https://www.zerodayinitiative.com/advisories/ZDI-20-704 | Third Party Advisory |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Netgear Search vendor "Netgear" | R6700 Firmware Search vendor "Netgear" for product "R6700 Firmware" | 1.0.4.84_10.0.58 Search vendor "Netgear" for product "R6700 Firmware" and version "1.0.4.84_10.0.58" | - |
Affected
| in | Netgear Search vendor "Netgear" | R6700 Search vendor "Netgear" for product "R6700" | - | - |
Safe
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