"Cisco Warns of Critical Vulnerability in EoL Small Business Routers"

Cisco recently announced that no patches will be released for a critical-severity vulnerability impacting small business RV016, RV042, RV042G, and RV082 routers, which have reached end of life (EoL).  Tracked as CVE-2023-20025 (CVSS score of 9.0), the security defect impacts the web-based management interface of the routers and could be exploited to bypass authentication.  The issue exists because user input within incoming HTTP packets is not properly validated, allowing an attacker to send crafted HTTP requests to the router to bypass authentication and gain root access to the operating system.  Cisco noted that they will not release software updates that address this vulnerability.  There are no workarounds that address this vulnerability.  The tech giant also warned of a high-severity bug in the web-based management interface of the same routers, which could lead to remote command execution.  Tracked as CVE-2023-20026, the vulnerability requires the attacker to be authenticated.  To mitigate this vulnerability, administrators can disable remote management on the affected devices and block access to ports 443 and 60443.  Cisco warned that proof-of-concept exploit code targeting this vulnerability is publicly available but says it is unaware of malicious attacks exploiting the bug.  This week Cisco also announced patches for high-severity vulnerabilities impacting IP Phone 7800 and 8800 series phones, Industrial Network Director (IND), and the BroadWorks Application Delivery and BroadWorks Xtended Services platforms.

SecurityWeek reports: "Cisco Warns of Critical Vulnerability in EoL Small Business Routers"