CVE-2022-20753
Cisco Small Business RV Series Routers Remote Code Execution Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability in web-based management interface of Cisco Small Business RV340 and RV345 Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to an affected device. A successful exploit could allow the attacker to execute remote code on the affected device. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.
Una vulnerabilidad en la interfaz de administración basada en la web de los routers Cisco Small Business RV340 y RV345 podría permitir a un atacante remoto autenticado ejecutar código arbitrario en un dispositivo afectado. Esta vulnerabilidad es debido a que no se ha comprobado suficientemente la entrada proporcionada por el usuario. Un atacante podría aprovechar esta vulnerabilidad mediante el envío de entradas maliciosas a un dispositivo afectado. Una explotación con éxito podría permitir al atacante ejecutar código remoto en el dispositivo afectado. Para aprovechar esta vulnerabilidad, un atacante necesitaría tener credenciales de administrador válidas en el dispositivo afectado
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the handling of set-snmp JSON RPC requests. When parsing the usmUserPrivKey parameter, the process does not properly validate 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 the www-data user.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2021-11-02 CVE Reserved
- 2022-05-04 CVE Published
- 2024-10-03 EPSS Updated
- 2024-11-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-121: Stack-based Buffer Overflow
- CWE-787: Out-of-bounds Write
CAPEC
References (1)
URL | Tag | Source |
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URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
---|---|---|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbrv-rce-OYLQbL9u | 2023-11-07 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Cisco Search vendor "Cisco" | Rv340 Firmware Search vendor "Cisco" for product "Rv340 Firmware" | < 1.0.03.27 Search vendor "Cisco" for product "Rv340 Firmware" and version " < 1.0.03.27" | - |
Affected
| in | Cisco Search vendor "Cisco" | Rv340 Search vendor "Cisco" for product "Rv340" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Rv340w Firmware Search vendor "Cisco" for product "Rv340w Firmware" | < 1.0.03.27 Search vendor "Cisco" for product "Rv340w Firmware" and version " < 1.0.03.27" | - |
Affected
| in | Cisco Search vendor "Cisco" | Rv340w Search vendor "Cisco" for product "Rv340w" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Rv345 Firmware Search vendor "Cisco" for product "Rv345 Firmware" | < 1.0.03.27 Search vendor "Cisco" for product "Rv345 Firmware" and version " < 1.0.03.27" | - |
Affected
| in | Cisco Search vendor "Cisco" | Rv345 Search vendor "Cisco" for product "Rv345" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Rv345p Firmware Search vendor "Cisco" for product "Rv345p Firmware" | < 1.0.03.27 Search vendor "Cisco" for product "Rv345p Firmware" and version " < 1.0.03.27" | - |
Affected
| in | Cisco Search vendor "Cisco" | Rv345p Search vendor "Cisco" for product "Rv345p" | - | - |
Safe
|