What is the severity of ZDI-21-593?

The severity of ZDI-21-593 is critical due to the potential for remote code execution without authentication.

How do I fix ZDI-21-593?

To fix ZDI-21-593, apply the latest firmware updates released by Advantech for the BB-ESWGP506-2SFP-T switches.

What systems are affected by ZDI-21-593?

ZDI-21-593 specifically affects the Advantech BB-ESWGP506-2SFP-T industrial switches.

Is authentication required to exploit ZDI-21-593?

No, authentication is not required to exploit the ZDI-21-593 vulnerability.

What kind of vulnerability is ZDI-21-593?

ZDI-21-593 is a remote code execution vulnerability within the telnet service of the affected devices.

Vulnerability/
ZDI-21-593

critical

9.8

3/8/2024

ZDI-21-593: Advantech BB-ESWGP506-2SFP-T Use of Hard-coded Credentials Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech BB-ESWGP506-2SFP-T industrial switches. Authentication is not required to exploit this vulnerability. The specific flaw exists within the telnet service, which listens on TCP port 23 by default. The service contains a hard-coded password for the administrator user account. An attacker can leverage this vulnerability to execute code in the context of the administrator user.

Affected Software	Affected Version	How to fix
Advantech BB-ESWGP506-2SFP-T

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Reference Links

Frequently Asked Questions

What is the severity of ZDI-21-593?
The severity of ZDI-21-593 is critical due to the potential for remote code execution without authentication.
How do I fix ZDI-21-593?
To fix ZDI-21-593, apply the latest firmware updates released by Advantech for the BB-ESWGP506-2SFP-T switches.
What systems are affected by ZDI-21-593?
ZDI-21-593 specifically affects the Advantech BB-ESWGP506-2SFP-T industrial switches.
Is authentication required to exploit ZDI-21-593?
No, authentication is not required to exploit the ZDI-21-593 vulnerability.
What kind of vulnerability is ZDI-21-593?
ZDI-21-593 is a remote code execution vulnerability within the telnet service of the affected devices.

agent/references
agent/type
agent/softwarecombine
collector/zdi-advisory
source/ZDI
alias/ZDI-21-593
alias/ZDI-CAN-11786
alias/CVE-2021-22667
agent/software-canonical-lookup
agent/title
agent/severity
agent/description
agent/event
agent/tags
agent/source
vendor/advantech
canonical/advantech bb-eswgp506-2sfp-t

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Frequently Asked Questions

What is the severity of ZDI-21-593?
The severity of ZDI-21-593 is critical due to the potential for remote code execution without authentication.
How do I fix ZDI-21-593?
To fix ZDI-21-593, apply the latest firmware updates released by Advantech for the BB-ESWGP506-2SFP-T switches.
What systems are affected by ZDI-21-593?
ZDI-21-593 specifically affects the Advantech BB-ESWGP506-2SFP-T industrial switches.
Is authentication required to exploit ZDI-21-593?
No, authentication is not required to exploit the ZDI-21-593 vulnerability.
What kind of vulnerability is ZDI-21-593?
ZDI-21-593 is a remote code execution vulnerability within the telnet service of the affected devices.