ZDI-21-560: Cisco RV340 set_snmp usmUserEngineID Command Injection Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the processing of JSON-RPC requests. When parsing the usmUserEngineID property, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the www-data user.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco RV340W Firmware |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of ZDI-21-560?
The severity of ZDI-21-560 is high due to the potential for remote code execution on affected Cisco RV340 routers.
How do I fix ZDI-21-560?
To fix ZDI-21-560, update your Cisco RV340 router to the latest firmware version provided by Cisco.
Can ZDI-21-560 be exploited remotely?
Yes, ZDI-21-560 can be exploited remotely but requires authentication to do so.
What types of devices are affected by ZDI-21-560?
ZDI-21-560 specifically affects Cisco RV340 routers.
Is authentication required to exploit ZDI-21-560?
Yes, authentication is required for an attacker to exploit the ZDI-21-560 vulnerability.
- agent/references
- agent/type
- agent/softwarecombine
- agent/severity
- agent/title
- agent/description
- agent/source
- agent/tags
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-560
- alias/ZDI-CAN-11800
- alias/CVE-2021-1415
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/event
- vendor/cisco
- canonical/cisco rv340w firmware