Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2018-19987

Severity CVSS v4.0:
Pending analysis
Type:
CWE-78 OS Command Injections
Publication date:
13/05/2019
Last modified:
26/04/2023

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.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 10.00 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
10.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:d-link:dir-818lw_firmware:2.05.b03:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-818lw:-:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-822_firmware:202krb06:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dir-822_firmware:3.10b06:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-822:-:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-860l_firmware:2.03.b03:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-860l:-:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-868l_firmware:2.05b02:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-868l:-:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-880l_firmware:1.20b01_01_i3se:beta:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-880l:-:*:*:*:*:*:*:*
cpe:2.3:o:d-link:dir-890l\/r_firmware:1.21b02:beta:*:*:*:*:*:*
cpe:2.3:h:dlink:dir-890l\/r:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools