What is the severity of ZDI-20-268?

The severity of ZDI-20-268 is classified as critical due to the ability of network-adjacent attackers to bypass authentication.

How do I fix ZDI-20-268?

To fix ZDI-20-268, users should apply the latest firmware update from D-Link for affected router models.

Which routers are affected by ZDI-20-268?

ZDI-20-268 affects D-Link DIR-867, DIR-878, and DIR-882 routers among other multiple routers from D-Link.

Can ZDI-20-268 be exploited remotely?

ZDI-20-268 requires an attacker to be on the same network segment, thus not entirely remote, but still poses a significant risk.

Is authentication required to exploit ZDI-20-268?

No, authentication is not required to exploit ZDI-20-268, making it particularly dangerous.

Vulnerability/
ZDI-20-268

high

8.8

4/8/2024

ZDI-20-268: D-Link Multiple Routers HNAP strncmp Incorrect Comparison Authentication Bypass Vulnerability

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of empty passwords. An attacker can leverage this vulnerability to execute arbitrary code on the router.

Affected Software	Affected Version	How to fix
D-Link Multiple Routers

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Frequently Asked Questions

What is the severity of ZDI-20-268?
The severity of ZDI-20-268 is classified as critical due to the ability of network-adjacent attackers to bypass authentication.
How do I fix ZDI-20-268?
To fix ZDI-20-268, users should apply the latest firmware update from D-Link for affected router models.
Which routers are affected by ZDI-20-268?
ZDI-20-268 affects D-Link DIR-867, DIR-878, and DIR-882 routers among other multiple routers from D-Link.
Can ZDI-20-268 be exploited remotely?
ZDI-20-268 requires an attacker to be on the same network segment, thus not entirely remote, but still poses a significant risk.
Is authentication required to exploit ZDI-20-268?
No, authentication is not required to exploit ZDI-20-268, making it particularly dangerous.

agent/references
agent/type
agent/softwarecombine
collector/zdi-advisory
source/ZDI
alias/ZDI-20-268
alias/ZDI-CAN-9471
alias/CVE-2020-8864
agent/software-canonical-lookup
agent/severity
agent/title
agent/tags
agent/description
agent/event
agent/source
vendor/d-link
canonical/d-link multiple routers

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Frequently Asked Questions

What is the severity of ZDI-20-268?
The severity of ZDI-20-268 is classified as critical due to the ability of network-adjacent attackers to bypass authentication.
How do I fix ZDI-20-268?
To fix ZDI-20-268, users should apply the latest firmware update from D-Link for affected router models.
Which routers are affected by ZDI-20-268?
ZDI-20-268 affects D-Link DIR-867, DIR-878, and DIR-882 routers among other multiple routers from D-Link.
Can ZDI-20-268 be exploited remotely?
ZDI-20-268 requires an attacker to be on the same network segment, thus not entirely remote, but still poses a significant risk.
Is authentication required to exploit ZDI-20-268?
No, authentication is not required to exploit ZDI-20-268, making it particularly dangerous.