Vulnerability · Published Jan 11, 2023 · Assigned by certcc
CVE-2022-4874Authenticated bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows unauthenticated user to get access to content.
High 7.5
In plain English
A high-severity security flaw in NF20 from Netcomm. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 11.0% (higher than 96% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)11.0%top 4.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Authentication bypass in Netcomm router models NF20MESH, NF20, and NL1902 allows an unauthenticated user to access content. In order to serve static content, the application performs a check for the existence of specific characters in the URL (.css, .png etc). If it exists, it performs a "fake login" to give the request an active session to load the file and not redirect to the login page.