Exploited vulnerability · CISA KEV

Is CVE-2018-10562 exploited? Yes: in CISA KEV since 31 Mar 2022

Gociux · Dasan Gigabit Passive Optical Network (GPON) Routers · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2018-10562, Dasan GPON Routers Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 31 Mar 2022, 1427 days after it was published. It is known to be used in ransomware campaigns. It affects Dasan Gigabit Passive Optical Network (GPON) Routers. If you run it, CISA's required action is: The impacted product is end-of-life and should be disconnected if still in use.

What it is

Dasan GPON Routers contain an authentication bypass vulnerability. When combined with CVE-2018-10561, exploitation can allow an attacker to perform remote code execution.

What to do

1. Check whether you run it. Look for Gigabit Passive Optical Network (GPON) Routers in your asset inventory, including appliances and cloud images. Stack check lists every exploited Dasan CVE at once.
2. Apply the fix. The impacted product is end-of-life and should be disconnected if still in use.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 4 May 2018.
4. Get told next time. Email alerts when CISA adds a CVE for Dasan.

Other exploited CVEs in Gigabit Passive Optical Network (GPON) Routers

• CVE-2018-10561: Dasan GPON Routers Authentication Bypass Vulnerability (31 Mar 2022)

References

• nvd.nist.gov/vuln/detail/CVE-2018-10562

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2022 · Dasan scorecard · act-now radar.