CVE-2021-20132

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).

CVSS v3 8.8 HIGH
CVSS v2.0 8.3 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

8.3^/10

CVSS v2.0 : HIGH

Vector : AV:A/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 6.5 / Impact : 10.0

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.tenable.com/security/research/tra-2021-44	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dir-2640-us_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dir-2640-us:-:*:*:*:*:*:*:*

History

12 Jan 2022, 20:03

Type	Values Removed	Values Added
CVSS	v2 : ~~10.0~~ v3 : ~~9.8~~	v2 : 8.3 v3 : 8.8

12 Jan 2022, 17:26

Type	Values Removed	Values Added
CWE		CWE-798
References	~~(MISC) https://www.tenable.com/security/research/tra-2021-44 -~~	(MISC) https://www.tenable.com/security/research/tra-2021-44 - Exploit, Third Party Advisory
First Time		Dlink Dlink dir-2640-us Dlink dir-2640-us Firmware
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 10.0 v3 : 9.8
CPE		cpe:2.3:o:dlink:dir-2640-us_firmware:::::::: cpe:2.3:h:dlink:dir-2640-us:-:::::::*

30 Dec 2021, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-12-30 22:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-20132

Mitre link : CVE-2021-20132

CVE.ORG link : CVE-2021-20132

JSON object : View

Products Affected

dlink

dir-2640-us
dir-2640-us_firmware

CWE

CWE-798

Use of Hard-coded Credentials

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