Remote code execution in Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers

1) Input validation error

EUVDB-ID: #VU71098

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-20007

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote user to compromise the affected device.

The vulnerability exists due to insufficient validation of user-supplied input in the web-based management interface. A remote privileged user can send a specially crafted HTTP request and execute arbitrary code or perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco RV340 Dual WAN Gigabit VPN Router: before 1.0.03.29

Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: before 1.0.03.29

Cisco RV345 Dual WAN Gigabit VPN Router: before 1.0.03.29

Cisco RV345P Dual WAN Gigabit VPN Router: before 1.0.03.29

CPE2.3

• cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-rcedos-7HjP74jD
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwc84443

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.