# CVE-2018-10562

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.

- Page: https://www.vulneraibility.com/cve/CVE-2018-10562
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2022-03-31; CISA due date 2022-04-21; known ransomware use
- EPSS: 99.95% (percentile 100.0)
- Public exploit code: 1 on Exploit-DB · 6 GitHub proofs of concept · 1 Nuclei template (first 2018-05-03)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-02-04)
- Weakness: CWE-78
- Published: 2018-05-04

## Affected

- dasannetworks:gpon_router_firmware

## References

- [other] http://www.securityfocus.com/bid/107053
- [exploit] https://www.exploit-db.com/exploits/44576/
- [other] https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-10562

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.