NetComm NF20MESH < R6B032 Authenticated RCE via OS Command Injection
Description
NetComm NF20MESH routers running firmware R6B031 and earlier contain an authenticated remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands as root by injecting shell metacharacters into the username JSON parameter processed by the dalStorage_addUserAccount function. Attackers can exploit the unsafe concatenation of user-supplied input into a shell command string passed to rut_doSystemAction without sanitization to achieve full root-level command execution on the underlying operating system.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <=R6B031
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
4- support.netcommwireless.com/api/Media/Firmware/4407c21d-e990-49a4-9754-b72475f20c76mitrerelease-notespatch
- www.vulncheck.com/advisories/netcomm-nf20mesh-r6b032-authenticated-rce-via-os-command-injectionmitrethird-party-advisory
- signal11.io/advisories/netcomm-nf20-mesh-remote-code-executionmitretechnical-description
- support.netcommwireless.com/products/nf20meshmitreproduct
News mentions
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