CVE-2017-6620 Auth bypass in Cisco CVR100W Wireless-N VPN Router
Unauthenticated attackers can bypass remote management ACLs on Cisco CVR100W routers when remote management is disabled, gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-6620?
CVE-2017-6620 is a medium-severity authentication bypass vulnerability in Cisco CVR100W Wireless-N VPN Router, published on 3 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the remote management access control list (ACL) feature of the Cisco CVR100W Wireless-N VPN Router could allow an unauthenticated, remote attacker to bypass the remote management ACL. The vulnerability is due to incorrect implementation of the ACL decision made during the ingress connection request to the remote management interface. An attacker could exploit this vulnerability by sending a connection to the management IP address or domain name of the targeted device. A successful exploit could allow the attacker to bypass the configured remote management ACL. This can occur when the Remote Management configuration parameter is set to Disabled. This vulnerability affects Cisco CVR100W Wireless-N VPN Routers running a firmware image prior to 1.0.1.24. Cisco Bug IDs: CSCvc14457.
Which versions are affected by CVE-2017-6620?
It affects 1 product.
Products include Cisco Small Business Rv Series Router Firmware.
How do I fix CVE-2017-6620?
No fix has been published for CVE-2017-6620 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2017-6620 being exploited?
There is no known exploitation of CVE-2017-6620 in the wild and no public exploit code.
Other vulnerabilities in Cisco CVR100W Wireless-N VPN Router
- CVE-2021-1609 Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Vulnerabilities
- CVE-2021-1610 Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Web Management Vulnerabilities
- CVE-2021-1602 Cisco Small Business RV160 and RV260 Series VPN Routers Remote Command Execution Vulnerability
Sources
Also known as GHSA-rchj-ffxp-rrv5.