OS command injection in Cisco Small Business RV160 and RV260 Series VPN Routers

1) OS Command Injection

EUVDB-ID: #VU71101

Risk: Low

CVSSv4.0: 6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-20045

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the web-based management interface . A remote privileged user can send a specially crafted HTTP request to the affected device and execute arbitrary OS commands on the target system with root privileges.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Cisco Small Business RV160 Series VPN Router: All versions

Cisco Small Business RV160W Wireless-AC VPN Router: All versions

Cisco Small Business RV260 VPN Router: All versions

Cisco Small Business RV260P VPN Router with POE: All versions

Cisco Small Business RV260W Wireless-AC VPN Router: All versions

CPE2.3

• cpe:2.3:h:cisco_systems:cisco_small_business_rv160_series_vpn_router:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_small_business_rv160w_wireless-ac_vpn_router:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_small_business_rv260_vpn_router:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_small_business_rv260p_vpn_router_with_poe:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_small_business_rv260w_wireless-ac_vpn_router:*:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-cmd-exe-n47kJQLE
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd62514

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.