CVE-2022-4874

Summary

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.

Affected Software

Weaknesses

• CWE-288

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md
• https://www.kb.cert.org/vuls/id/986018

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/scarvell/advisories/blob/main/2022_netcomm_nf20mesh_unauth_rce.md

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