CVE-2023-24512

Public Exploit
On affected platforms running Arista EOS, an authorized attacker with permissions to perform gNMI requests could craft a request allowing it to update arbitrary configurations in the switch.

Description

On affected platforms running Arista EOS, an authorized attacker with permissions to perform gNMI requests could craft a request allowing it to update arbitrary configurations in the switch. This situation occurs only when the Streaming Telemetry Agent (referred to as the TerminAttr agent) is enabled and gNMI access is configured on the agent. Note: This gNMI over the Streaming Telemetry Agent scenario is mostly commonly used when streaming to a 3rd party system and is not used by default when streaming to CloudVision

Remediation

Solution:

  • While the steps listed above resolve the issue, the recommended long term solution 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. There are two possible solutions: Upgrade the Streaming Telemetry Agent Customers can upgrade the Streaming Telemetry Agent to a fixed version, following the directions in https://arista.my.site.com/AristaCommunity/s/article/terminattr-upgrade-downgrade. Fixes are available in the following supported release trains: TerminAttr 1.25.0 and later Terminattr versions Users of 1.24.X and 1.23.X TerminAttr releases should upgrade to TerminAttr 1.25.0 or later. TerminAttr 1.22.2 and later version in the TerminAttr 1.22.X train TerminAttr 1.19.6 and later versions in the TerminAttr 1.19.X train
  • Upgrade EOS Customers can upgrade to a version of EOS which contains a fixed version of the Streaming Telemetry Agent within the EOS image, as documented in https://www.arista.com/en/um-eos/eos-upgradedowngrade-overview: EOS 4.29.2F and later releases, which contains TerminAttr 1.25.0 or a more recent version EOS 4.28.6M and later releases in the 4.28.X train, which contains TerminAttr 1.22.2 or a more recent version EOS 4.27.9M and later releases in the 4.27.X train, which contains TerminAttr 1.19.6 or a more recent version EOS 4.26.10M and later releases in the 4.26.X train, which contains TerminAttr 1.19.6 or a more recent version

Workaround:

  • The streaming telemetry agent can be configured in gRPC read-only mode by specifying -grpcreadonly as part of its configuration. For instance as follows: switch# daemon TerminAttr exec /usr/bin/TerminAttr -grpcreadonly -grpcaddr=... no shutdown If TerminAttr is running, it must be restarted for the configuration to take effect. This can be done as follows: switch# daemon TerminAttr shutdown wait-for-warmup no shutdown

Categories

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.09%
Vendor Advisory arista.com
Affected: Arista Networks Terminattr
Published at:
Updated at:

References

Link Tags
https://www.arista.com/en/support/advisories-notices/security-advisory/17250-security-advisory-0086 vendor advisory mitigation exploit

Frequently Asked Questions

What is the severity of CVE-2023-24512?
CVE-2023-24512 has been scored as a high severity vulnerability.
How to fix CVE-2023-24512?
To fix CVE-2023-24512: While the steps listed above resolve the issue, the recommended long term solution 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. There are two possible solutions: Upgrade the Streaming Telemetry Agent Customers can upgrade the Streaming Telemetry Agent to a fixed version, following the directions in https://arista.my.site.com/AristaCommunity/s/article/terminattr-upgrade-downgrade. Fixes are available in the following supported release trains: TerminAttr 1.25.0 and later Terminattr versions Users of 1.24.X and 1.23.X TerminAttr releases should upgrade to TerminAttr 1.25.0 or later. TerminAttr 1.22.2 and later version in the TerminAttr 1.22.X train TerminAttr 1.19.6 and later versions in the TerminAttr 1.19.X train
Is CVE-2023-24512 being actively exploited in the wild?
It is possible that CVE-2023-24512 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-24512?
CVE-2023-24512 affects Arista Networks Terminattr.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.