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Multiple Vulnerabilities in Cisco Products Could Allow for Arbitrary Code Execution

MS-ISAC ADVISORY NUMBER:

2020-097

DATE(S) ISSUED:

07/15/2020

OVERVIEW:

Multiple vulnerabilities have been discovered in Cisco Devices, the most severe of which could allow for remote command execution. Cisco is a vender for IT, networking and cybersecurity solutions. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining root privilege. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

THREAT INTELLIGENCE:

There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:

  • Cisco RV110W Wireless-N VPN Firewall prior to 1.2.2.8
  • Cisco RV215W Wireless-N VPN Router prior to 1.3.1.7
  • Cisco Prime License Manager (PLM) Software prior to 10.5(2)SU10 and prior to 11.5(1)SU7
  • RV130 VPN Router releases prior to 1.0.3.55
  • RV130W Wireless-N Multifunction VPN Router releases prior to 1.0.3.55

RISK:

Government:
  • Large and medium government entities: HIGH
  • Small government entities: HIGH
Businesses:
  • Large and medium business entities: HIGH
  • Small business entities: HIGH
Home Users:
LOW

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Cisco Products, the most severe of which could result in arbitrary code execution. These vulnerabilities can be exploited when maliciously crafted packets are sent to the vulnerable device. Details of the vulnerabilities are as follows:

  • A vulnerability in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. (CVE-2020-3323)
  • A vulnerability in the Telnet service of Cisco Small Business RV110W Wireless-N VPN Firewall Routers could allow an unauthenticated, remote attacker to take full control of the device with a high-privileged account. (CVE-2020-3330)
  • A vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, RV130 VPN Router, RV130W Wireless-N Multifunction VPN Router, and RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary commands with administrative commands on an affected device. (CVE-2020-3144)
  • A vulnerability in the web-based management interface of Cisco RV110W Wireless-N VPN Firewall and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. (CVE-2020-3331)
  • A vulnerability in the web management interface of Cisco Prime License Manager (PLM) Software could allow an unauthenticated, remote attacker to gain unauthorized access to an affected device. (CVE-2020-3140)

Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining root privilege. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply appropriate patches or appropriate mitigations provided by Cisco to vulnerable systems immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative rights) to diminish the effects of a successful attack.
  • Remind all users not to visit untrusted websites or follow links provided by unknown or untrusted sources.
  • Inform and educate users regarding threats posed by hypertext links contained in emails or attachments especially from untrusted sources.
  • Apply the Principle of Least Privilege to all systems and services.

REFERENCES:

Information Hub : Advisories


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