CVE-2017-17020

published 2018-05-01

CVE-2017-17020: On D-Link DCS-5009 devices with firmware 1.08.11 and earlier, DCS-5010 devices with firmware 1.14.09 and earlier, and DCS-5020L devices with firmware before…

Priority P2 70 high 8.8 CVSS 3.0

AV N AC L PR L UI N S U C H I H A H

EXPLOIT

On D-Link DCS-5009 devices with firmware 1.08.11 and earlier, DCS-5010 devices with firmware 1.14.09 and earlier, and DCS-5020L devices with firmware before 1.15.01, command injection in alphapd (binary responsible for running the camera's web server) allows remote authenticated attackers to execute code through sanitized /setSystemAdmin user input in the AdminID field being passed directly to a call to system.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
dlink	dcs-5009_firmware	<= 1.08.11	—
dlink	dcs-5010_firmware	<= 1.14.09	—
dlink	dcs-5020l_firmware	<= 1.14.09	—

Detection & IOCs extracted from sources · hover to see the quote

path /setSystemAdmin↗

process alphapd↗

• → Monitor HTTP requests to the /setSystemAdmin endpoint on D-Link DCS camera web interfaces for AdminID field values containing backtick characters (`) or shell metacharacters indicative of command injection attempts. ↗

• · Exploitation requires prior authentication; the attacker must have valid credentials to reach the /setSystemAdmin endpoint. Unauthenticated access alone is insufficient to trigger the injection. ↗
• · Affected firmware versions are: DCS-5009 ≤ 1.08.11, DCS-5010 ≤ 1.14.09, and DCS-5020L < 1.15.01. Detection rules should be scoped to these device/firmware combinations. ↗

CVSS provenance

nvd v3.0 8.8 HIGH CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 6.5 MEDIUM AV:N/AC:L/Au:S/C:P/I:P/A:P

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