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

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CVE-2020-25757

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
15/12/2020
Last modified:
21/07/2021

Description

A lack of input validation and access controls in Lua CGIs on D-Link DSR VPN routers may result in arbitrary input being passed to system command APIs, resulting in arbitrary command execution with root privileges. This affects DSR-150, DSR-250, DSR-500, and DSR-1000AC with firmware 3.14 and 3.17.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Adjacent
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
8.80
Severity 3.x
HIGH
Vector 2.0
AV:A/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 8.30 HIGH
Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C

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

Base Score 2.0
8.30
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:dlink:dsr-150_firmware:*:*:*:*:*:*:*:* 3.17 (including)
cpe:2.3:h:dlink:dsr-150:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dsr-150n_firmware:*:*:*:*:*:*:*:* 3.17 (including)
cpe:2.3:h:dlink:dsr-150n:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dsr-250_firmware:*:*:*:*:*:*:*:* 3.17 (including)
cpe:2.3:h:dlink:dsr-250:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dsr-250n_firmware:*:*:*:*:*:*:*:* 3.17 (including)
cpe:2.3:h:dlink:dsr-250n:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dsr-500_firmware:*:*:*:*:*:*:*:* 3.17 (including)
cpe:2.3:h:dlink:dsr-500:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dsr-500n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dsr-500n:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dsr-500ac_firmware:*:*:*:*:*:*:*:* 3.17 (including)
cpe:2.3:h:dlink:dsr-500ac:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dsr-1000_firmware:*:*:*:*:*:*:*:* 3.17 (including)

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


References to Advisories, Solutions, and Tools