What is CVE-2021-27792?

CVE-2021-27792 is a vulnerability in Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h that allows an authenticated attacker to cause a service crash by exploiting a weakness in the handling of malformed user input in the web management interface.

How severe is CVE-2021-27792?

CVE-2021-27792 has a severity rating of 7.8, which is considered high.

Which software versions are affected by CVE-2021-27792?

Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h are affected by CVE-2021-27792.

How can an attacker exploit CVE-2021-27792?

An authenticated attacker can exploit CVE-2021-27792 by sending malformed user input to the web management interface of affected Brocade Fabric OS versions, causing a service crash.

Are there any references for CVE-2021-27792?

Yes, you can find references for CVE-2021-27792 at the following links: [NetApp Security Advisory](https://security.netapp.com/advisory/ntap-20210819-0002/), [Brocade Security Advisory 2021-1490](https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1490), [Brocade Security Advisory 2021-1492](https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1492).

Vulnerability/
CVE-2021-27792

high

7.8

12/8/2021

3/8/2024

CVE-2021-27792

First published: Thu Aug 12 2021(Updated: )

The request handling functions in web management interface of Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h do not properly handle malformed user input, resulting in a service crash. An authenticated attacker could use this weakness to cause the FOS HTTP application handler to crash, requiring a reboot.

Credit: sirt@brocade.com

Affected Software	Affected Version	How to fix
Broadcom Fabric Operating System	<7.4.2h
Broadcom Fabric Operating System	>=8.0.0<8.2.3a
Broadcom Fabric Operating System	>=9.0.0<9.0.1a

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Frequently Asked Questions

What is CVE-2021-27792?
CVE-2021-27792 is a vulnerability in Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h that allows an authenticated attacker to cause a service crash by exploiting a weakness in the handling of malformed user input in the web management interface.
How severe is CVE-2021-27792?
CVE-2021-27792 has a severity rating of 7.8, which is considered high.
Which software versions are affected by CVE-2021-27792?
Brocade Fabric OS versions before v9.0.1a, v8.2.3a, and v7.4.2h are affected by CVE-2021-27792.
How can an attacker exploit CVE-2021-27792?
An authenticated attacker can exploit CVE-2021-27792 by sending malformed user input to the web management interface of affected Brocade Fabric OS versions, causing a service crash.
Are there any references for CVE-2021-27792?
Yes, you can find references for CVE-2021-27792 at the following links: [NetApp Security Advisory](https://security.netapp.com/advisory/ntap-20210819-0002/), [Brocade Security Advisory 2021-1490](https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1490), [Brocade Security Advisory 2021-1492](https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1492).

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agent/first-publish-date
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collector/mitre-cve
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vendor/broadcom
canonical/broadcom fabric operating system
version/broadcom fabric operating system/8.0.0
version/broadcom fabric operating system/9.0.0

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