Multiple vulnerabilities in Cisco Small Business RV Series Routers
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2022-20799 CVE-2022-20801 CVE-2022-20753 |
| CWE-ID | CWE-77 CWE-121 |
| Exploitation vector | Network |
| Public exploit | N/A |
| 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 |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Command Injection
EUVDB-ID: #VU62805
Risk: Low
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-20799
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the web-based management interface. A remote administrator can pass specially crafted data to the application and execute arbitrary commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco RV340 Dual WAN Gigabit VPN Router: 1.0.03.26
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: 1.0.03.26
Cisco RV345 Dual WAN Gigabit VPN Router: 1.0.03.26
Cisco RV345P Dual WAN Gigabit VPN Router: 1.0.03.26
CPE2.3- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
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.
2) Command Injection
EUVDB-ID: #VU62806
Risk: Low
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-20801
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the web-based management interface when parsing the usmUserPrivKey and usmUserAuthKey parameters in set-snmp JSON RPC requests. A remote administrator can pass specially crafted data to the application and execute arbitrary commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco RV340 Dual WAN Gigabit VPN Router: 1.0.03.26
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: 1.0.03.26
Cisco RV345 Dual WAN Gigabit VPN Router: 1.0.03.26
Cisco RV345P Dual WAN Gigabit VPN Router: 1.0.03.26
CPE2.3- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-rv-cmd-inj-8Pv9JMJD
https://www.zerodayinitiative.com/advisories/ZDI-22-723/
https://www.zerodayinitiative.com/advisories/ZDI-22-724/
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.
3) Stack-based buffer overflow
EUVDB-ID: #VU62807
Risk: Low
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-20753
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in web-based management interface when handling set-snmp JSON RPC requests. A remote administrator can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco RV340 Dual WAN Gigabit VPN Router: 1.0.03.26
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: 1.0.03.26
Cisco RV345 Dual WAN Gigabit VPN Router: 1.0.03.26
Cisco RV345P Dual WAN Gigabit VPN Router: 1.0.03.26
CPE2.3- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv340w_dual_wan_gigabit_wireless-ac_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_rv345p_dual_wan_gigabit_vpn_router:1.0.03.26:*:*:*:*:*:*:*
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbrv-rce-OYLQbL9u
https://www.zerodayinitiative.com/advisories/ZDI-22-756/
https://www.zerodayinitiative.com/advisories/ZDI-22-803/
https://www.zerodayinitiative.com/advisories/ZDI-22-802/
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.
