Executive Summary

Informations
Name CVE-2021-34203 First vendor Publication 2021-06-16
Vendor Cve Last vendor Modification 2024-02-14

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Overall CVSS Score 8.1
Base Score 8.1 Environmental Score 8.1
impact SubScore 5.2 Temporal Score 8.1
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score 4.8 Attack Range Adjacent network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 6.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

D-Link DIR-2640-US 1.01B04 is vulnerable to Incorrect Access Control. Router ac2600 (dir-2640-us), when setting PPPoE, will start quagga process in the way of whole network monitoring, and this function uses the original default password and port. An attacker can easily use telnet to log in, modify routing information, monitor the traffic of all devices under the router, hijack DNS and phishing attacks. In addition, this interface is likely to be questioned by customers as a backdoor, because the interface should not be exposed.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34203

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1

Sources (Detail)

Source Url
MISC http://d-link.com
http://dir-2640-us.com
https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34203
https://www.dlink.com/en/security-bulletin/

Alert History

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Date Informations
2024-02-14 13:28:13
  • Multiple Updates
2022-07-13 17:27:43
  • Multiple Updates
2021-06-24 21:23:11
  • Multiple Updates
2021-06-17 05:22:47
  • First insertion