What is the severity of ZDI-22-420?

The severity of ZDI-22-420 is classified as a high-risk vulnerability due to its potential for privilege escalation.

How do I fix ZDI-22-420?

To fix ZDI-22-420, you should update the firmware of affected Cisco RV340 routers to the latest version provided by Cisco.

Who is affected by ZDI-22-420?

ZDI-22-420 affects users of Cisco RV340 routers who have low-privileged code execution capabilities on their devices.

What types of attacks can ZDI-22-420 enable?

ZDI-22-420 can enable local attackers to escalate their privileges, potentially allowing them full control over the affected router.

Is ZDI-22-420 remote or local exploitation?

ZDI-22-420 requires local exploitation, meaning an attacker must have access to run low-privileged code on the target Cisco RV340 router.

Vulnerability/
ZDI-22-420

high

2/2/2025

ZDI-22-420: (Pwn2Own) Cisco RV340 utility-ping-request Insecure Temporary File 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 utility-ping-request script. The issue results from the creation of a temporary file with insecure permissions. 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

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of ZDI-22-420?
The severity of ZDI-22-420 is classified as a high-risk vulnerability due to its potential for privilege escalation.
How do I fix ZDI-22-420?
To fix ZDI-22-420, you should update the firmware of affected Cisco RV340 routers to the latest version provided by Cisco.
Who is affected by ZDI-22-420?
ZDI-22-420 affects users of Cisco RV340 routers who have low-privileged code execution capabilities on their devices.
What types of attacks can ZDI-22-420 enable?
ZDI-22-420 can enable local attackers to escalate their privileges, potentially allowing them full control over the affected router.
Is ZDI-22-420 remote or local exploitation?
ZDI-22-420 requires local exploitation, meaning an attacker must have access to run low-privileged code on the target Cisco RV340 router.

agent/type
agent/references
agent/softwarecombine
agent/title
agent/severity
agent/description
agent/source
agent/tags
collector/zdi-advisory
source/ZDI
alias/ZDI-22-420
alias/ZDI-CAN-15946
alias/CVE-2022-20702
agent/software-canonical-lookup
agent/software-canonical-lookup-request
agent/event
vendor/cisco
canonical/cisco rv340w firmware

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.