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

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CVE-2021-20132

Severity CVSS v4.0:
Pending analysis
Type:
CWE-798 Use of Hard-coded Credentials
Publication date:
30/12/2021
Last modified:
12/01/2022

Description

Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the "admin" user, UID 0).

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:dir-2640-us_firmware:*:*:*:*:*:*:*:* 1.11b02 (including)
cpe:2.3:h:dlink:dir-2640-us:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools