ZDI-22-419: (Pwn2Own) Cisco RV340 JSON RPC file-copy Command Injection Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Cisco RV340 routers. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of file-copy JSON RPC requests. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco RV340W Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-419?
ZDI-22-419 is classified as a high-severity vulnerability due to its potential for privilege escalation.
How do I fix ZDI-22-419?
To remediate ZDI-22-419, install the latest firmware update for the Cisco RV340 router.
Who is affected by ZDI-22-419?
ZDI-22-419 affects installations of Cisco RV340 routers that have not been updated to secure versions.
What type of attack is associated with ZDI-22-419?
ZDI-22-419 is associated with local privilege escalation attacks.
What is required to exploit ZDI-22-419?
An attacker must first obtain the ability to execute low-privileged code on the Cisco RV340 router to exploit ZDI-22-419.
- agent/type
- agent/references
- agent/softwarecombine
- agent/title
- agent/severity
- agent/description
- agent/source
- agent/tags
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-22-419
- alias/ZDI-CAN-15940
- alias/CVE-2022-20707
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/event
- vendor/cisco
- canonical/cisco rv340w firmware