Multiple vulnerabilities in Cisco Small Business RV Series Routers



Published: 2022-08-04
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-20827
CVE-2022-20841
CVE-2022-20842
CWE-ID CWE-77
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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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

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: #VU66106

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20827

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the web filter database update feature. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system with root privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Small Business RV160 Series VPN Router: 1.0.01.05

Cisco Small Business RV160W Wireless-AC VPN Router: 1.0.01.05

Cisco Small Business RV260 VPN Router: 1.0.01.05

Cisco Small Business RV260P VPN Router with POE: 1.0.01.05

Cisco Small Business RV260W Wireless-AC VPN Router: 1.0.01.05

Cisco 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

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-mult-vuln-CbVp4SUR


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.

2) Command Injection

EUVDB-ID: #VU66107

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20841

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the Open Plug and Play (PnP) module. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system with root privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Small Business RV160 Series VPN Router: 1.0.01.05

Cisco Small Business RV160W Wireless-AC VPN Router: 1.0.01.05

Cisco Small Business RV260 VPN Router: 1.0.01.05

Cisco Small Business RV260P VPN Router with POE: 1.0.01.05

Cisco Small Business RV260W Wireless-AC VPN Router: 1.0.01.05

Cisco 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

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-mult-vuln-CbVp4SUR


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.

3) Buffer overflow

EUVDB-ID: #VU66105

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20842

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the web-based management interface. A remote attacker can send a specially crafted HTTP request, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco 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

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-mult-vuln-CbVp4SUR


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.



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