CVE-2021-26637

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66782	Broken Link Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:shinasys:sihas_sgw-300_firmware:-:::::android::
	cpe:2.3:o:shinasys:sihas_sgw-300_firmware:-:::::iphone_os::

cpe:2.3:h:shinasys:sihas_sgw-300:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

OR	cpe:2.3:o:shinasys:sihas_acm-300_firmware:-:::::android::
	cpe:2.3:o:shinasys:sihas_acm-300_firmware:-:::::iphone_os::

cpe:2.3:h:shinasys:sihas_acm-300:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

OR	cpe:2.3:o:shinasys:sihas_gcm-300_firmware:-:::::android::
	cpe:2.3:o:shinasys:sihas_gcm-300_firmware:-:::::iphone_os::

cpe:2.3:h:shinasys:sihas_gcm-300:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-06-23 17:15

Updated : 2023-06-26 17:49

NVD link : CVE-2021-26637

Mitre link : CVE-2021-26637

CVE.ORG link : CVE-2021-26637

JSON object : View

Products Affected

shinasys

sihas_gcm-300_firmware
sihas_sgw-300_firmware
sihas_acm-300_firmware
sihas_gcm-300
sihas_acm-300
sihas_sgw-300

CWE

CWE-306

Missing Authentication for Critical Function

CWE-862

Missing Authorization

CWE-287

Improper Authentication

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