Vulnerability identifier: #VU60252

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2022-20705

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Cisco RV340 Dual WAN Gigabit VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco RV345 Dual WAN Gigabit VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco RV345P Dual WAN Gigabit VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the session management of the web UI. A remote non-authenticated attacker can brute force to determine a current session identifier and then reuse it to take over an ongoing session or by crafting a new, valid session identifier and bypassing the whole authentication mechanism.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco RV340 Dual WAN Gigabit VPN Router: 1.0.0.33 - 1.0.3.17

Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: 1.0.01.16 - 1.0.03.24

Cisco RV345 Dual WAN Gigabit VPN Router: 1.0.0.33 - 1.0.3.17

Cisco RV345P Dual WAN Gigabit VPN Router: 1.0.0.33 - 1.0.1.16

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-mult-vuln-KA9PK6D

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.