Multiple vulnerabilities in Cisco Small Business RV Series Routers
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-1472 CVE-2021-1473 |
| CWE-ID | CWE-284 CWE-77 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. |
| 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 Cisco Small Business RV160 Series VPN Router Hardware solutions / Routers & switches, VoIP, GSM, etc Cisco Small Business RV160W Wireless-AC VPN Router Hardware solutions / Routers & switches, VoIP, GSM, etc Cisco Small Business RV260 VPN Router Hardware solutions / Routers & switches, VoIP, GSM, etc Cisco Small Business RV260P VPN Router with POE Hardware solutions / Routers & switches, VoIP, GSM, etc Cisco Small Business RV260W Wireless-AC VPN Router Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Improper access control
EUVDB-ID: #VU51986
Risk: Medium
CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]
CVE-ID: CVE-2021-1472
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted HTTP request, upload files to directories that should have been restricted.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco RV340 Dual WAN Gigabit VPN Router: 1.0.03.20
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: 1.0.03.20
Cisco RV345 Dual WAN Gigabit VPN Router: 1.0.03.20
Cisco RV345P Dual WAN Gigabit VPN Router: 1.0.03.20
Cisco Small Business RV160 Series VPN Router: before 1.0.01.03
Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.03
Cisco Small Business RV260 VPN Router: before 1.0.01.03
Cisco Small Business RV260P VPN Router with POE: before 1.0.01.03
Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.03
CPE2.3- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:1.0.03.20:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:1.0.03.20:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:1.0.03.20:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:1.0.03.20:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*:*
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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. However, a fully functional exploit for this vulnerability is available.
2) Command Injection
EUVDB-ID: #VU51987
Risk: High
CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]
CVE-ID: CVE-2021-1473
CWE-ID:
CWE-77 - Command injection
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the web-based management interface. A remote attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco RV340 Dual WAN Gigabit VPN Router: 1.0.03.20
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: 1.0.03.20
Cisco RV345 Dual WAN Gigabit VPN Router: 1.0.03.20
Cisco RV345P Dual WAN Gigabit VPN Router: 1.0.03.20
CPE2.3- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:1.0.03.20:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:1.0.03.20:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:1.0.03.20:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:1.0.03.20:*:*:*:*:*:*:*
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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. However, a fully functional exploit for this vulnerability is available.
