CVE-2018-3954

Summary

Devices in the Linksys ESeries line of routers (Linksys E1200 Firmware Version 2.0.09 and Linksys E2500 Firmware Version 3.0.04) are susceptible to OS command injection vulnerabilities due to improper filtering of data passed to and retrieved from NVRAMData entered into the 'Router Name' input field through the web portal is submitted to apply.cgi as the value to the 'machine_name' POST parameter. When the 'preinit' binary receives the SIGHUP signal it enters a code path that calls a function named 'set_host_domain_name' from its libshared.so shared object.

Affected Software

VendorProductVersion RangeStatus
LinksysESeries E1200Firmware Version 2.0.09affected
LinksysESeries E2500Firmware Version 3.0.04affected

Weaknesses

  • OS Command Injection

ADP Enrichment

CVE Program Container

Additional References

References