CVE-2020-27863: D-Link Multiple Routers dhttpd Authentication Bypass Vulnerability

Published Feb 11, 2021

Updated

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of D-Link DVA-2800 and DSL-2888A routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dhttpd service, which listens on TCP port 8008 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise.

Affected Software

5 affected components

D-Link Multiple Routers

Dlink Dva-2800 Firmware=2.30_au

Dlink Dva-2800=revision_t

Dlink Dsl-2888a Firmware=2.30_au

Dlink Dsl-2888a=revision_t

Event History

Feb 11, 2021

CVE Published

via MITRE·11:35 PM

Data Sourced

via MITRE·11:35 PM

DescriptionSeverityWeakness

Aug 4, 2024

Advisory Published

via ZDI·04:34 PM

Frequently Asked Questions

What is the vulnerability identifier for this D-Link router vulnerability?

The vulnerability identifier for this D-Link router vulnerability is CVE-2020-27863.

What is the severity of the CVE-2020-27863 vulnerability?

The severity of the CVE-2020-27863 vulnerability is medium with a CVSS score of 6.5.

How can an attacker exploit the CVE-2020-27863 vulnerability?

An attacker can exploit the CVE-2020-27863 vulnerability by disclosing sensitive information without authentication.

Which D-Link routers are affected by the CVE-2020-27863 vulnerability?

The D-Link DVA-2800 and DSL-2888A routers with specific firmware versions are affected by the CVE-2020-27863 vulnerability.

Is authentication required to exploit the CVE-2020-27863 vulnerability?

No, authentication is not required to exploit the CVE-2020-27863 vulnerability.