An issue was discovered on D-Link DCS-1100 and DCS-1130 devices
Published Jul 2, 2019
9.8
CRITICALCVSS 3.1
EPSS 3.93%
Description
An issue was discovered on D-Link DCS-1100 and DCS-1130 devices. The device has a custom telnet daemon as a part of the busybox and retrieves the password from the shadow file using the function getspnam at address 0x00053894. Then performs a crypt operation on the password retrieved from the user at address 0x000538E0 and performs a strcmp at address 0x00053908 to check if the password is correct or incorrect. However, the /etc/shadow file is a part of CRAM-FS filesystem which means that the user cannot change the password and hence a hardcoded hash in /etc/shadow is used to match the credentials provided by the user. This is a salted hash of the string "admin" and hence it acts as a password to the device which cannot be changed as the whole filesystem is read only.
Affected products
No data.
Configuration 1
- n/a
Configuration 2
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.93% (0.03930) | 90.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.93% (0.03930) | 88.98th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.94% (0.02941) | 85.22th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.69% (0.04692) | 81.87th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.94% (0.02941) | 85.52th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.42% (0.00420) | 74.40th | v3 (v2023.03.01) |
| Jun 25, 2024 | 0.42% (0.00420) | 74.29th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.35% (0.00352) | 71.12th | v3 (v2023.03.01) |
| Sep 27, 2023 | 0.35% (0.00352) | 68.60th | v3 (v2023.03.01) |
| Aug 27, 2023 | 0.41% (0.00414) | 70.71th | v3 (v2023.03.01) |
| May 23, 2023 | 0.32% (0.00324) | 66.36th | v3 (v2023.03.01) |
| Apr 21, 2023 | 0.40% (0.00401) | 69.72th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00313) | 65.42th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v1 |
| Jan 6, 2022 | 0.83% (0.00833) | 23.96th | v1 |
| Sep 1, 2021 | 0.83% (0.00833) | 57.50th | v1 |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (3)
- http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html x_refsource_MISCThird Party AdvisoryVDB Entry
- https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf x_refsource_MISCNot ApplicableThird Party Advisory
- https://seclists.org/bugtraq/2019/Jun/8 mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf | x_refsource_MISCNot ApplicableThird Party Advisory | |
| https://seclists.org/bugtraq/2019/Jun/8 | mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.