CVE-2018-10562 on CISA KEV

An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, i

01What CISA says about this vulnerability

An issue was discovered on Dasan GPON home routers. Command Injection can occur via the dest_host parameter in a diag_action=ping request to a GponForm/diag_Form URI. Because the router saves ping results in /tmp and transmits them to the user when the user revisits /diag.html, it's quite simple to execute commands and retrieve their output.

02Required action — verbatim from CISA

The impacted product is end-of-life and should be disconnected if still in use.

03Notes & references

• www.securityfocus.com — http://www.securityfocus.com/bid/107053
• www.exploit-db.com — https://www.exploit-db.com/exploits/44576/
• www.vpnmentor.com — https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

06Detection

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