CVE-2021-45917: SUN & MOON RISE CO., LTD. Shockwall - Improper Authentication

Severity: critical (CVSS 9.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-01-03 · updated 2026-06-17
Weakness: CWE-287

Description

The server-request receiver function of Shockwall system has an improper authentication vulnerability. An authenticated attacker of an agent computer within the local area network can use the local registry information to launch server-side request forgery (SSRF) attack on another agent computer, resulting in arbitrary code execution for controlling the system or disrupting service.

Affected products

Sun Moon Jingyao Network Computer Terminal Protection System Firmware: before 7.20.0401 — fixed in 7.20.0401

How to fix

Upgrade to a fixed version: Sun Moon Jingyao Network Computer Terminal Protection System Firmware 7.20.0401. Check the vendor advisory for mitigations.

References

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