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Authenticated OS Command Execution in TOTOLINK A3002RU
CVE-2020-25499 is an authenticated remote OS command execution vulnerability affecting TOTOLINK A3002RU firmware V2.0.0 B20190814.1034. Authenticated remote users can modify the router's 'Run Command' functionality to execute arbitrary operating-system commands. Exploitation has been associated with the Mirai.TBOT, AIRASHI, Gayfemboy, and Dysphoria botnets.
What it means and what to do now: patch path, interim mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
Successful exploitation allows an authenticated remote attacker to execute arbitrary OS commands on the affected router. The vulnerability has been used by botnets to compromise devices for malware propagation and infrastructure supporting DDoS activity. The execution privilege level and specific confidentiality or availability effects are not established.
If you can’t patch tonight, do this now.
Restrict access to the router management interface to trusted administrative networks only, disable remote administration if not required, enforce strong unique credentials, and monitor for unauthorized configuration changes. Network segmentation and management-plane access controls can reduce exposure until a patch or replacement is implemented.
Patch, then assume compromise.
Upgrade the affected TOTOLINK A3002RU firmware to a vendor-fixed release if one is available. If no patched version is available, replace the device with supported firmware or hardware that is no longer vulnerable. Review administrative accounts and device integrity after suspected compromise, and restore from a trusted configuration baseline where necessary.
No public exploits tracked yet. Mallory keeps watching.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.