RondoDox Botnet Exploits Critical 2018 Vulnerability to Hijack ASUS Routers

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Cybersecurity firm VulnCheck’s latest research reveals that cybercriminals are now targeting old models of ASUS routers by exploiting a software vulnerability from 2018, tracked as CVE-2018-5999. This is a critical unauthenticated configuration update vulnerability with a CVSS score of 9.8/10 that lets hackers change the settings of the router without needing a password.

The attacks were discovered by the firm’s specialised system called VulnCheck Canary Network. Further probing revealed that a botnet (network of infected devices running the malware payload) named RondoDox botnet is behind these attacks, and those operating it started exploiting the vulnerability on May 17. Following these findings, the vulnerability has been added to the company’s Known Exploited Vulnerabilities catalogue.

As per the research findings, shared with Hackread.com, the attack pattern relies on a specific mechanism where the attackers send data payloads to set the ateCommand_flag setting to 1. This change prompts the router’s internal system interface,...

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