Description
An issue was discovered on D-Link DSR-250 3.17 devices. Insufficient validation of configuration file checksums could allow a remote, authenticated attacker to inject arbitrary crontab entries into saved configurations before uploading. These entries are executed as root.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_misc
https://www.dlink.com/en/security-bulletin
Vendor Advisory x_refsource_misc
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10195
Third Party Advisory x_refsource_misc
https://www.digitaldefense.com/news/zero-day-vuln-d-link-vpn-routers/
Scores
CVSS v3
8.8
EPSS
0.0124
EPSS Percentile
65.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-354
Status
published
Products (10)
dlink/dsr-1000_firmware
< 3.17
dlink/dsr-1000ac_firmware
< 3.17
dlink/dsr-1000n_firmware
< 3.17
dlink/dsr-150_firmware
< 3.17
dlink/dsr-150n_firmware
< 3.17
dlink/dsr-250_firmware
< 3.17
dlink/dsr-250n_firmware
< 3.17
dlink/dsr-500_firmware
< 3.17
dlink/dsr-500ac_firmware
< 3.17
dlink/dsr-500n_firmware
Published
Dec 15, 2020
Tracked Since
Feb 18, 2026