CVE-2021-28506: An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device.
First published: Tue Jan 11 2022(Updated: )
An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device.
Credit: psirt@arista.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Arista EOS | >=4.24.0<=4.24.7m | |
| Arista EOS | >=4.25.0<=4.25.3 | |
| Arista EOS | >=4.25.4<=4.25.4m | |
| Arista EOS | >=4.25.5<=4.25.5.1m | |
| Arista EOS | >=4.26.0<=4.26.2f |
Remedy
The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Arista recommends customers move to the latest version of each release. CVE-2021-28506 has been fixed in the following releases: 4.26.3M and later releases in the 4.26.x train 4.25.6M and later releases in the 4.25.x train 4.25.4.1M and later releases in the 4.25.4.x train 4.24.8M and later releases in the 4.24.x train
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue in Arista EOS?
The vulnerability ID for this issue in Arista EOS is CVE-2021-28506.
What is the severity of CVE-2021-28506?
The severity of CVE-2021-28506 is critical with a severity value of 9.1.
Which versions of Arista EOS are affected by CVE-2021-28506?
Versions 4.24.0 to 4.24.7m, 4.25.0 to 4.25.3, 4.25.4, 4.25.5 to 4.25.5.1m, and 4.26.0 to 4.26.2f of Arista EOS are affected by CVE-2021-28506.
What is the impact of CVE-2021-28506?
CVE-2021-28506 could potentially allow a factory reset of the affected Arista EOS device.
How can I fix CVE-2021-28506 in Arista EOS?
Arista has released a security advisory (reference: https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071) with instructions on how to mitigate the vulnerability in Arista EOS.
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- agent/type
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- agent/severity
- agent/title
- agent/weakness
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- agent/last-modified-date
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- agent/references
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- vendor/arista
- canonical/arista eos
- version/arista eos/4.24.0
- version/arista eos/4.24.7m
- version/arista eos/4.25.0
- version/arista eos/4.25.3
- version/arista eos/4.25.4
- version/arista eos/4.25.4m
- version/arista eos/4.25.5
- version/arista eos/4.25.5.1m
- version/arista eos/4.26.0
- version/arista eos/4.26.2f