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cveKrcertCVE-2021-26637
HistoryJun 23, 2022 - 5:15 p.m.

CVE-2021-26637

2022-06-2317:15:11
CWE-306
CWE-862
CWE-287
krcert
web.nvd.nist.gov
33
6
sihas
sgw-300
acm-300
gcm-300
firmware
apps
authentication
permission check
remote control
unauthorized users
nvd
cve-2021-26637

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.4

Confidence

High

EPSS

0.002

Percentile

56.3%

JSON

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 configurations

Nvd
Node
shinasyssihas_sgw-300_firmwareMatch-android
OR
shinasyssihas_sgw-300_firmwareMatch-iphone_os
AND
shinasyssihas_sgw-300Match-
Node
shinasyssihas_acm-300_firmwareMatch-android
OR
shinasyssihas_acm-300_firmwareMatch-iphone_os
AND
shinasyssihas_acm-300Match-
Node
shinasyssihas_gcm-300_firmwareMatch-android
OR
shinasyssihas_gcm-300_firmwareMatch-iphone_os
AND
shinasyssihas_gcm-300Match-
VendorProductVersionCPE
shinasyssihas_sgw-300_firmware-cpe:2.3:o:shinasys:sihas_sgw-300_firmware:-:*:*:*:*:android:*:*
shinasyssihas_sgw-300_firmware-cpe:2.3:o:shinasys:sihas_sgw-300_firmware:-:*:*:*:*:iphone_os:*:*
shinasyssihas_sgw-300-cpe:2.3:h:shinasys:sihas_sgw-300:-:*:*:*:*:*:*:*
shinasyssihas_acm-300_firmware-cpe:2.3:o:shinasys:sihas_acm-300_firmware:-:*:*:*:*:android:*:*
shinasyssihas_acm-300_firmware-cpe:2.3:o:shinasys:sihas_acm-300_firmware:-:*:*:*:*:iphone_os:*:*
shinasyssihas_acm-300-cpe:2.3:h:shinasys:sihas_acm-300:-:*:*:*:*:*:*:*
shinasyssihas_gcm-300_firmware-cpe:2.3:o:shinasys:sihas_gcm-300_firmware:-:*:*:*:*:android:*:*
shinasyssihas_gcm-300_firmware-cpe:2.3:o:shinasys:sihas_gcm-300_firmware:-:*:*:*:*:iphone_os:*:*
shinasyssihas_gcm-300-cpe:2.3:h:shinasys:sihas_gcm-300:-:*:*:*:*:*:*:*

CNA Affected

[
  {
    "platforms": [
      "Android, iOS"
    ],
    "product": "SiHAS firmware",
    "vendor": "Shina System Co.,Ltd",
    "versions": [
      {
        "status": "affected",
        "version": "1.xx"
      }
    ]
  },
  {
    "platforms": [
      "Android, iOS"
    ],
    "product": "SiHAS old app",
    "vendor": "Shina System Co.,Ltd",
    "versions": [
      {
        "status": "affected",
        "version": "old app"
      }
    ]
  }
]

Social References

More

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CVE-2021-26637 SiHAS Improper Authentication vulnerability
2022-06-22 13:55:58
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CVE-2021-26637
2022-06-23 17:15:11

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.4

Confidence

High

EPSS

0.002

Percentile

56.3%

JSON
Related for CVE-2021-26637
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