What is CVE-2018-19986?

CVE-2018-19986 is a vulnerability in the /HNAP1/SetRouterSettings message in D-Link DIR-818LW Rev.A 2.05.B03 and DIR-822 B1 202KRb06 devices where the RemotePort parameter is vulnerable.

How severe is CVE-2018-19986?

CVE-2018-19986 has a severity rating of 9.8 (critical).

Which software is affected by CVE-2018-19986?

D-Link DIR-818LW Rev.A 2.05.B03 and DIR-822 B1 202KRb06 devices are affected by CVE-2018-19986.

How can I fix CVE-2018-19986?

To fix CVE-2018-19986, it is recommended to update the firmware of the affected devices to the latest version provided by the manufacturer.

What is the CWE of CVE-2018-19986?

The CWE (Common Weakness Enumeration) of CVE-2018-19986 is 78.

Vulnerability/
CVE-2018-19986

critical

CWE

13/5/2019

5/8/2024

CVE-2018-19986: OS Command Injection

First published: Mon May 13 2019(Updated: )

In the /HNAP1/SetRouterSettings message, the RemotePort parameter is vulnerable, and the vulnerability affects D-Link DIR-818LW Rev.A 2.05.B03 and DIR-822 B1 202KRb06 devices. In the SetRouterSettings.php source code, the RemotePort parameter is saved in the $path_inf_wan1."/web" internal configuration memory without any regex checking. And in the IPTWAN_build_command function of the iptwan.php source code, the data in $path_inf_wan1."/web" is used with the iptables command without any regex checking. A vulnerable /HNAP1/SetRouterSettings XML message could have shell metacharacters in the RemotePort element such as the `telnetd` string.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
D-link Dir-818lw Firmware	=2.05.b03
Dlink Dir-818lw
D-link Dir-822 Firmware	=202krb06
Dlink Dir-822

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Reference Links

https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990

Frequently Asked Questions

What is CVE-2018-19986?
CVE-2018-19986 is a vulnerability in the /HNAP1/SetRouterSettings message in D-Link DIR-818LW Rev.A 2.05.B03 and DIR-822 B1 202KRb06 devices where the RemotePort parameter is vulnerable.
How severe is CVE-2018-19986?
CVE-2018-19986 has a severity rating of 9.8 (critical).
Which software is affected by CVE-2018-19986?
D-Link DIR-818LW Rev.A 2.05.B03 and DIR-822 B1 202KRb06 devices are affected by CVE-2018-19986.
How can I fix CVE-2018-19986?
To fix CVE-2018-19986, it is recommended to update the firmware of the affected devices to the latest version provided by the manufacturer.
What is the CWE of CVE-2018-19986?
The CWE (Common Weakness Enumeration) of CVE-2018-19986 is 78.

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vendor/d-link
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version/d-link dir-818lw firmware/2.05.b03
vendor/dlink
canonical/dlink dir-818lw
canonical/d-link dir-822 firmware
version/d-link dir-822 firmware/202krb06
canonical/dlink dir-822

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