CVE-2017-6884

Description

A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

References

• https://www.exploit-db.com/exploits/41782/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6884
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog
• https://nvd.nist.gov/vuln/detail/CVE-2017-6884
• https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerability-in-emg2926-q10a-ethernet-cpe
• https://www.zyxelguard.com/Zyxel-EOL.asp
• https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-15938