CVE-2021-28497
First published: Thu Sep 09 2021(Updated: )
In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, the bash shell might be accessible to unprivileged users in situations where they should not have access. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train
Credit: psirt@arista.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Arista Metamako Operating System | <=0.26.6 | |
| Arista Metamako Operating System | >=0.31.0<0.32.0 | |
| Arista 7130 |
Remedy
Upgrade to MOS-0.26.7 or MOS-0.32.0
Remedy
Install hotfix stored at https://www.arista.com/assets/data/SecurityAdvisories/SA64-67/SecurityAdvisory64-67-Hotfix-mos-1818-2.0.0-1.11.core2_64.rpm For detailed information about hotfix installation, please see the advisory https://www.arista.com/en/support/advisories-notices/security-advisories/12912-security-advisory-64
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Reference Links
Frequently Asked Questions
What is CVE-2021-28497?
CVE-2021-28497 is a vulnerability that affects Arista's MOS (Metamako Operating System) software on the 7130 product line.
What is the severity of CVE-2021-28497?
CVE-2021-28497 has a severity rating of 7.8 (high).
How does CVE-2021-28497 affect Arista Metamako Operating System?
CVE-2021-28497 allows unprivileged users to access the bash shell in situations where they should not have access.
Which versions of Arista Metamako Operating System are affected by CVE-2021-28497?
CVE-2021-28497 affects all releases up to and including 0.26.6 of Arista Metamako Operating System, as well as releases from 0.31.0 to 0.32.0 (excluding 0.32.0).
How can I find more information about CVE-2021-28497?
For more information on CVE-2021-28497, refer to the Arista Security Advisory 65 at https://www.arista.com/en/support/advisories-notices/security-advisories/12913-security-advisory-65.
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- canonical/arista metamako operating system
- version/arista metamako operating system/0.26.6
- version/arista metamako operating system/0.31.0
- canonical/arista 7130