CVE-2021-27793
First published: Thu Aug 12 2021(Updated: )
ntermittent authorization failure in aaa tacacs+ with Brocade Fabric OS versions before Brocade Fabric OS v9.0.1b and after 9.0.0, also in Brocade Fabric OS before Brocade Fabric OS v8.2.3a and after v8.2.0 could cause a user with a valid account to be unable to log into the switch.
Credit: sirt@brocade.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Broadcom Fabric Operating System | >=8.2.0<8.2.3 | |
| Broadcom Fabric Operating System | >=9.0.0<9.0.1 | |
| Broadcom Fabric Operating System | =8.2.3 | |
| Broadcom Fabric Operating System | =9.0.1 | |
| Broadcom Fabric Operating System | =9.0.1a |
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Reference Links
Frequently Asked Questions
What is CVE-2021-27793?
CVE-2021-27793 is a vulnerability that causes intermittent authorization failure in aaa tacacs+ with Brocade Fabric OS versions before Brocade Fabric OS v9.0.1b and after 9.0.0, and also in Brocade Fabric OS before Brocade Fabric OS v8.2.3a and after v8.2.0, which could cause a user with a valid account to be unable to log into the switch.
What is the severity of CVE-2021-27793?
The severity of CVE-2021-27793 is medium, with a severity value of 5.3.
Which software versions are affected by CVE-2021-27793?
Brocade Fabric OS versions before Brocade Fabric OS v9.0.1b and after 9.0.0, and also in Brocade Fabric OS before Brocade Fabric OS v8.2.3a and after v8.2.0 are affected by CVE-2021-27793.
How can CVE-2021-27793 be fixed?
To fix CVE-2021-27793, it is recommended to update to Brocade Fabric OS v9.0.1b or later, or Brocade Fabric OS v8.2.3a or later.
Where can I find more information about CVE-2021-27793?
You can find more information about CVE-2021-27793 in the following references: [NetApp Security Advisory](https://security.netapp.com/advisory/ntap-20210819-0001/) and [Brocade Security Advisory](https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1553).
- collector/nvd-index
- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/tags
- agent/type
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- vendor/broadcom
- canonical/broadcom fabric operating system
- version/broadcom fabric operating system/8.2.0
- version/broadcom fabric operating system/9.0.0
- version/broadcom fabric operating system/8.2.3
- version/broadcom fabric operating system/9.0.1
- version/broadcom fabric operating system/9.0.1a