CVE-2018-19986
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 41.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 41.61% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- d-link/dir-818lw firmware · d-link/dir-822 firmware
- Source
- cve@mitre.org
References
- https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990Exploit, Third Party Advisory
- https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.