CVE-2019-16920 : Unauthenticated remote code execution occurs in D-Link products such as DIR-655C

Unauthenticated remote code execution occurs in D-Link products such as DIR-655C, DIR-866L, DIR-652, and DHP-1565. The issue occurs when the attacker sends an arbitrary input to a "PingTest" device common gateway interface that could lead to common injection. An attacker who successfully triggers the command injection could achieve full system compromise. Later, it was independently found that these are also affected: DIR-855L, DAP-1533, DIR-862L, DIR-615, DIR-835, and DIR-825.

Published 2019-09-27 12:15:10

Updated 2024-07-16 17:54:26

Source MITRE

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2019-16920

Dlink » Dir-615 Firmware » Version: N/A
cpe:2.3:o:dlink:dir-615_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-615 » Version: N/A
Dlink » Dir-655 Firmware
Versions up to, including, (<=) 3.02b05
cpe:2.3:o:dlink:dir-655_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-655 » Version: CX
Dlink » Dir-866l Firmware
Versions up to, including, (<=) 1.03b04
cpe:2.3:o:dlink:dir-866l_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-866l » Version: AX
Dlink » Dir-652 Firmware » Version: N/A
cpe:2.3:o:dlink:dir-652_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-652 » Version: AX
Dlink » Dhp-1565 Firmware
Versions up to, including, (<=) 1.01
cpe:2.3:o:dlink:dhp-1565_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dhp-1565 » Version: AX
Dlink » Dir-825 Firmware » Version: N/A
cpe:2.3:o:dlink:dir-825_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-825 » Version: N/A
Dlink » Dir-855l Firmware » Version: N/A
cpe:2.3:o:dlink:dir-855l_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-855l » Version: N/A
Dlink » Dap-1533 Firmware » Version: N/A
cpe:2.3:o:dlink:dap-1533_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-1533 » Version: N/A
Dlink » Dir-862l Firmware » Version: N/A
cpe:2.3:o:dlink:dir-862l_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-862l » Version: N/A
Dlink » Dir-835 Firmware » Version: N/A
cpe:2.3:o:dlink:dir-835_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-835 » Version: N/A

CVE-2019-16920 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

D-Link Multiple Routers Command Injection Vulnerability

CISA required action:

The impacted product is end-of-life and should be disconnected if still in use.

CISA description:

Multiple D-Link routers contain a command injection vulnerability which can allow attackers to achieve full system compromise.

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2019-16920

Added on 2022-03-25 Action due date 2022-04-15

Exploit prediction scoring system (EPSS) score for CVE-2019-16920

EPSS FAQ

96.97%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 100 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-16920

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
10.0	HIGH	AV:N/AC:L/Au:N/C:C/I:C/A:C	10.0	10.0	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-16920

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-16920

https://www.kb.cert.org/vuls/id/766427

VU#766427 - Multiple D-Link routers vulnerable to remote command execution
Third Party Advisory;US Government Resource
https://medium.com/@80vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3

Determine the device model affected by CVE-2019–16920 by ZoomEye
https://www.seebug.org/vuldb/ssvid-98079

Exploit;Third Party Advisory
https://fortiguard.com/zeroday/FG-VD-19-117

Fortinet Discovers D-Link DIR-866L Unauthenticated RCE Vulnerability | FortiGuard
Broken Link;Third Party Advisory
https://medium.com/%4080vul/determine-the-device-model-affected-by-cve-2019-16920-by-zoomeye-bf6fec7f9bb3

Determine the device model affected by CVE-2019–16920 by ZoomEye | by heige | Medium
Exploit;Third Party Advisory