CVE-2018-10561 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-03-31
Dasan GPON home routers contain an authentication bypass vulnerability that allows an attacker to gain unauthorized management access by appending '?images' to URLs requiring authentication. This flaw is frequently chained with CVE-2018-10562 to achieve remote code execution.
Quick answers
Is CVE-2018-10561 exploited in the wild?
Yes. CVE-2018-10561 is known to be exploited in the wild, first recorded on 31 March 2022. Treat it as urgent.
How severe is CVE-2018-10561?
Critical severity, with a CVSS score of 9.8, published 31 March 2022.
Which products and versions are affected?
Dasan Networks GPON home routers All versions (End-of-Life).
Is there a fix for CVE-2018-10561?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2018-10561 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2018-10561?
Check whether you run Dasan Gigabit Passive Optical Network (GPON) Routers. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Dasan Networks GPON home routers All versions (End-of-Life)
Timeline
2018-05-03: disclosed: NVD Published Date
2022-03-31: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2022-04-21: other: CISA Due Date for remediation (disconnect EOL devices)