CVE-2018-10562
Dasan GPON Routers Command Injection Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 21 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.95% probability · 100th percentile
- CISA KEV
- Listed 31 March 2022 · due 21 April 2022 · used in ransomware campaigns
- Weakness
- CWE-78
- Affected
- dasannetworks/gpon router firmware
- Source
- cve@mitre.org
CISA notes
The impacted product is end-of-life and should be disconnected if still in use. https://nvd.nist.gov/vuln/detail/CVE-2018-10562
References
- http://www.securityfocus.com/bid/107053Broken Link, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44576/Exploit, Third Party Advisory, VDB Entry
- https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/Exploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/107053Broken Link, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44576/Exploit, Third Party Advisory, VDB Entry
- https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/Exploit, Technical Description, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-10562US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.