CVE-2019-17147
TP-LINK TL-WR841N Web Service http_parser_main Buffer Overflow Remote Code Execution Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-LINK TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 80 by default. When parsing the Host request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length static buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user. Was ZDI-CAN-8457.
Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de los routers TP-LINK TL-WR841N. No es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico ocurre dentro del servicio web, que escucha sobre el puerto TCP 80 por defecto. Cuando se analiza el encabezado de petición Host, el proceso no comprueba apropiadamente la longitud de los datos suministrados por el usuario antes de copiarlos en un búfer estático de longitud fija. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del usuario administrador. Fue ZDI-CAN-8457.
This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-LINK TL-WR841N routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the web service, which listens on TCP port 80 by default. When parsing the Host request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length static buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-10-04 CVE Reserved
- 2019-11-26 CVE Published
- 2024-06-04 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (2)
URL | Tag | Source |
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https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware | Product | |
https://www.zerodayinitiative.com/advisories/ZDI-19-992 | 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 |
Tp-link Search vendor "Tp-link" | Tl-wr841n Firmware Search vendor "Tp-link" for product "Tl-wr841n Firmware" | 0.9.1_4.16 Search vendor "Tp-link" for product "Tl-wr841n Firmware" and version "0.9.1_4.16" | - |
Affected
| in | Tp-link Search vendor "Tp-link" | Tl-wr841n Search vendor "Tp-link" for product "Tl-wr841n" | - | - |
Safe
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