D-Link DNS-320 Device Command Injection Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
• EPSS: 100% chance of exploitation in the next 30 days (higher than 100% of CVEs)
• Critical severity: CVSS 9.8

[ Description ]Official description

D-Link DNS-320 FW v2.06B01 Revision Ax is affected by command injection in the system_mgr.cgi component, which can lead to remote arbitrary code execution.

CISA: D-Link DNS-320 device contains a command injection vulnerability in the sytem_mgr.cgi component that may allow for remote code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 3 May 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• gist.github.com/WinMin/6f63fd1ae95977e0e2d49bd4b5f00675ExploitThird Party Advisory
• supportannouncement.us.dlink.com/announcement/publication.aspxVendor Advisory
• www.dlink.com/en/security-bulletinVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource