CVE Vulnerabilities

CVE-2020-27863

Authentication Bypass Using an Alternate Path or Channel

Published: Feb 12, 2021 | Modified: Apr 23, 2021
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
3.3 LOW
AV:A/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

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. Was ZDI-CAN-10912.

Weakness

A product requires authentication, but the product has an alternate path or channel that does not require authentication.

Affected Software

Name Vendor Start Version End Version
Dva-2800_firmware Dlink 2.30_au (including) 2.30_au (including)

Potential Mitigations

References