Cisco on Wednesday rolled out patches to deal with eight safety vulnerabilities, three of which could possibly be weaponized by an unauthenticated attacker to realize distant code execution (RCE) or trigger a denial-of-service (DoS) situation on affected gadgets.
The most important of the issues impression Cisco Small Business RV160, RV260, RV340, and RV345 Series routers. Tracked as CVE-2022-20842 (CVSS rating: 9.8), the weak spot stems from an inadequate validation of user-supplied enter to the web-based administration interface of the home equipment.
“An attacker could exploit this vulnerability by sending crafted HTTP input to an affected device,” Cisco stated in an advisory. “A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition.”
A second shortcoming pertains to a command injection vulnerability residing within the routers’ net filter database replace function (CVE-2022-20827, CVSS rating: 9.0), which could possibly be exploited by an adversary to inject and execute arbitrary instructions on the underlying working system with root privileges.
The third router-related flaw to be resolved (CVE-2022-20841, CVSS rating: 8.0) can be a command injection bug within the Open Plug-n-Play (PnP) module that could possibly be abused by sending a malicious enter to realize code execution on the focused Linux host.
“To exploit this vulnerability, an attacker must leverage a man-in-the-middle position or have an established foothold on a specific network device that is connected to the affected router,” the networking gear maker famous.
Also patched by Cisco are 5 medium safety flaws affecting Webex Meetings, Identity Services Engine, Unified Communications Manager, and BroadWorks Application Delivery Platform.
The firm supplied no workarounds to remediate the problems, including there isn’t a proof of those vulnerabilities being exploited within the wild. That stated, prospects are really useful to maneuver rapidly to use the updates.