What is CVE-2021-22667?

CVE-2021-22667 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Advantech BB-ESWGP506-2SFP-T industrial switches.

How severe is CVE-2021-22667?

CVE-2021-22667 has a severity rating of 9.8 (Critical).

Is authentication required to exploit CVE-2021-22667?

No, authentication is not required to exploit CVE-2021-22667.

What is the specific flaw within CVE-2021-22667?

The specific flaw within CVE-2021-22667 is a vulnerability in the telnet service, which listens on TCP port 23 by default.

How can I fix CVE-2021-22667?

To fix CVE-2021-22667, apply the necessary security patches provided by Advantech.

Vulnerability/
CVE-2021-22667

critical

CWE

798

24/2/2021

3/8/2024

CVE-2021-22667: Advantech BB-ESWGP506-2SFP-T Use of Hard-coded Credentials Remote Code Execution Vulnerability

First published: Wed Feb 24 2021(Updated: )

BB-ESWGP506-2SFP-T versions 1.01.09 and prior is vulnerable due to the use of hard-coded credentials, which may allow an attacker to gain unauthorized access and permit the execution of arbitrary code on the BB-ESWGP506-2SFP-T (versions 1.01.01 and prior).

Credit: ics-cert@hq.dhs.gov

Affected Software	Affected Version	How to fix
Advantech Bb-eswgp506-2sfp-t Firmware	<=1.01.09
Advantech BB-ESWGP506-2SFP-T
Advantech BB-ESWGP506-2SFP-T
Advantech BB-ESWGP506-2SFP-T industrial ethernet switches	<=1.01.09

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

ICSA-21-054-02

Frequently Asked Questions

What is CVE-2021-22667?
CVE-2021-22667 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Advantech BB-ESWGP506-2SFP-T industrial switches.
How severe is CVE-2021-22667?
CVE-2021-22667 has a severity rating of 9.8 (Critical).
Is authentication required to exploit CVE-2021-22667?
No, authentication is not required to exploit CVE-2021-22667.
What is the specific flaw within CVE-2021-22667?
The specific flaw within CVE-2021-22667 is a vulnerability in the telnet service, which listens on TCP port 23 by default.
How can I fix CVE-2021-22667?
To fix CVE-2021-22667, apply the necessary security patches provided by Advantech.

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canonical/advantech bb-eswgp506-2sfp-t firmware
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canonical/advantech bb-eswgp506-2sfp-t industrial ethernet switches
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