CVE-2018-19987 Information

Description

D-Link DIR-822 Rev.B 202KRb06 DIR-822 Rev.C 3.10B06 DIR-860L Rev.B 2.03.B03 DIR-868L Rev.B 2.05B02 DIR-880L Rev.A 1.20B01_01_i3se_BETA and DIR-890L Rev.A 1.21B02_BETA devices mishandle IsAccessPoint in /HNAP1/SetAccessPointMode. In the SetAccessPointMode.php source code the IsAccessPoint parameter is saved in the ShellPath script file without any regex checking. After the script file is executed the command injection occurs. A vulnerable /HNAP1/SetAccessPointMode XML message could have shell metacharacters in the IsAccessPoint element such as the telnetd string.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-1998620-2019990

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8