by Kastro
Paper/Archive/CVE-2021-26637

CVE-2021-26637

Shina System Co.,Ltd SiHAS firmware — SiHAS Improper Authentication vulnerability

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 79.8.798 × 2016.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

There is no account authentication and permission check logic in the firmware and existing apps of SiHAS's SGW-300, ACM-300, GCM-300, so unauthorized users can remotely control the device.

Affected

ProductAffectedFixed inSource
SiHAS firmware1.xx–CNA
SiHAS old appold app–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
krcert (CNA)8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refkrcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66782