CVE-2021-46378: DLink DIR850 ET850-1.08TRb03 is affected by an incorrect access control vulnerability through an unauthenticated remote configuration download.

PriorityP270high7.5CVSS 3.1

AVNACLPRNUINSUCHINAN

EXPLOIT

EPSS

31.86%

98.1th percentile

DLink DIR850 ET850-1.08TRb03 is affected by an incorrect access control vulnerability through an unauthenticated remote configuration download.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
dlink	dir-850l_firmware	—	—

Detection & IOCsextracted from sources · hover to see the quote

urlhttp://<target>/config.dat↗

→Detect unauthenticated HTTP GET requests to /config.dat on DLink DIR850 devices, which exposes the device configuration without authentication. ↗
→Monitor for HTTP requests targeting the path /config.dat on embedded/router devices, especially without any session cookie or authentication headers. ↗

·Vulnerability is confirmed only on the specific firmware version ET850-1.08TRb03 on hardware version b1 of the DLink DIR850. ↗

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.