CVE-2023-24509: On affected modular platforms running Arista EOS equipped with both redundant supervisor modules and having the redundancy protocol configured with RPR or SSO, an existing unprivileged user can login to the standby supervisor as a root user, leading t ...
First published: Thu Apr 13 2023(Updated: )
On affected modular platforms running Arista EOS equipped with both redundant supervisor modules and having the redundancy protocol configured with RPR or SSO, an existing unprivileged user can login to the standby supervisor as a root user, leading to a privilege escalation. Valid user credentials are required in order to exploit this vulnerability.
Credit: psirt@arista.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Arista EOS | >=4.23<=4.23.13m | |
| Arista EOS | >=4.24.0<4.24.11m | |
| Arista EOS | >=4.25.0<4.25.10m | |
| Arista EOS | >=4.26.0<4.26.9m | |
| Arista EOS | >=4.27.0<4.27.7m | |
| Arista EOS | >=4.28.0<4.28.4m | |
| Arista 704x3 | ||
| Arista 7304x3 | ||
| Arista 7304x3 | ||
| Arista 7308 | ||
| Arista 7316x | ||
| Arista 7324x | ||
| Arista 7328x | ||
| Arista 7504R3 | ||
| Arista 7504R3 | ||
| Arista 7508R3 | ||
| Arista 7508R3 | ||
| Arista 7512R3 | ||
| Arista 7512R3 | ||
| Arista 7516R | ||
| Arista 7550 Series | ||
| Arista 758x | ||
| Arista 7804r3 | ||
| Arista 7808R3 | ||
| Arista 7812R3 | ||
| Arista 7816R3 |
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 that contains all the fixes listed below. CVE-2023-24509 has been fixed in the following releases: 4.28.4M and later releases in the 4.28.x train 4.27.7M and later releases in the 4.27.x train 4.26.9M and later releases in the 4.26.x train 4.25.10M and later releases in the 4.25.x train 4.24.11M and later releases in the 4.24.x train
Remedy
The following hotfix can be applied to remediate CVE-2023-24509. The hotfix only applies to the releases listed below and no other releases. All other versions require upgrading to a release containing the fix (as listed above).: 4.28.3M and below releases in the 4.28.x train 4.27.6M and below releases in the 4.27.x train 4.26.8M and below releases in the 4.26.x train 4.25.9M and below releases in the 4.25.x train 4.24.10M 4.23.13M Note: Installing/uninstalling the SWIX will cause ConfigAgent to restart and disconnect existing CLI sessions. Version: 1.0 URL: SecurityAdvisory82_CVE-2023-24509_Hotfix.swix SWIX hash: (SHA-512)7833ab99e11cfea1ec28c09aedffd062cfc865a20a843ee6184caff1081e748c8a02590644d0c7b0e377027379cbaadc8b1a70d1c37097bf98c1bedb429dca56
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-24509?
The severity of CVE-2023-24509 is critical, with a CVSS score of 7.8.
How does CVE-2023-24509 impact Arista EOS?
CVE-2023-24509 allows an unprivileged user to escalate privileges and login as a root user on affected Arista EOS platforms with redundant supervisor modules and RPR or SSO configured.
Which versions of Arista EOS are affected by CVE-2023-24509?
Arista EOS versions 4.23 to 4.28.4m are affected by CVE-2023-24509.
How can I fix CVE-2023-24509?
To mitigate CVE-2023-24509, upgrade to a fixed version of Arista EOS, such as 4.29 or later.
Where can I find more information about CVE-2023-24509?
More information about CVE-2023-24509 can be found in the Arista Security Advisory 0082 at https://www.arista.com/en/support/advisories-notices/security-advisory/16985-security-advisory-0082.
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- agent/remedy
- agent/last-modified-date
- agent/weakness
- agent/title
- agent/author
- agent/source
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/arista
- canonical/arista eos
- version/arista eos/4.23
- version/arista eos/4.23.13m
- version/arista eos/4.24.0
- version/arista eos/4.25.0
- version/arista eos/4.26.0
- version/arista eos/4.27.0
- version/arista eos/4.28.0
- canonical/arista 704x3
- canonical/arista 7304x3
- canonical/arista 7308
- canonical/arista 7316x
- canonical/arista 7324x
- canonical/arista 7328x
- canonical/arista 7504r3
- canonical/arista 7508r3
- canonical/arista 7512r3
- canonical/arista 7516r
- canonical/arista 7550 series
- canonical/arista 758x
- canonical/arista 7804r3
- canonical/arista 7808r3
- canonical/arista 7812r3
- canonical/arista 7816r3