Multiple vulnerabilities in Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers

1) Code Injection

EUVDB-ID: #VU50318

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2021-1289

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the HTTP requests are not properly validated. A remote attacker can send a specially crafted HTTP request 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 Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf
https://www.zerodayinitiative.com/advisories/ZDI-21-152/

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) Code Injection

EUVDB-ID: #VU50319

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2021-1290

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the HTTP requests are not properly validated. A remote attacker can send a specially crafted HTTP request 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 Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf

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) Code Injection

EUVDB-ID: #VU50320

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2021-1291

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the HTTP requests are not properly validated. A remote attacker can send a specially crafted HTTP request 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 Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf

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.

4) Code Injection

EUVDB-ID: #VU50321

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2021-1292

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the HTTP requests are not properly validated. A remote attacker can send a specially crafted HTTP request 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 Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf

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.

5) Code Injection

EUVDB-ID: #VU50322

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2021-1293

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the HTTP requests are not properly validated. A remote attacker can send a specially crafted HTTP request 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 Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf

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.

6) Code Injection

EUVDB-ID: #VU50323

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2021-1294

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the HTTP requests are not properly validated. A remote attacker can send a specially crafted HTTP request 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 Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf

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.

7) Code Injection

EUVDB-ID: #VU50324

Risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2021-1295

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to the HTTP requests are not properly validated. A remote attacker can send a specially crafted HTTP request 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 Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf

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.

8) Path traversal

EUVDB-ID: #VU50326

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-1297

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error in the web-based management interface. A remote attacker can use the web-based management interface to upload a file to location on an affected device and overwrite files on the target device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-filewrite-7x9mnKjn

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.

9) Path traversal

EUVDB-ID: #VU50325

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-1296

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error in the web-based management interface. A remote attacker can use the web-based management interface to upload a file to location on an affected device and overwrite files on the target device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Small Business RV160 Series VPN Router: before 1.0.01.02

Cisco Small Business RV160W Wireless-AC VPN Router: before 1.0.01.02

Cisco Small Business RV260 VPN Router: before 1.0.01.02

Cisco Small Business RV260P VPN Router with POE: before 1.0.01.02

Cisco Small Business RV260W Wireless-AC VPN Router: before 1.0.01.02

CPE2.3

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-filewrite-7x9mnKjn

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.

Risk	High
Patch available	YES
Number of vulnerabilities	9
CVE-ID	CVE-2021-1289 CVE-2021-1290 CVE-2021-1291 CVE-2021-1292 CVE-2021-1293 CVE-2021-1294 CVE-2021-1295 CVE-2021-1297 CVE-2021-1296
CWE-ID	CWE-94 CWE-22
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	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