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CVE-2024-27892On affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected (SSL Profiles Enabled).

Description

Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected. This can result in unexpected configuration being applied to the switch.

Timeline

  1. ID reserved

    By Arista

  2. · 2 years later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2024-27892, by who scored it
Scored byCVSSScoreVector
AristaCNA (assigner)4.0High7.2CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
AristaCNA (assigner)3.1Critical9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
NVDNVD · Awaiting Analysis4.0High7.2CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
0.30% · top 77% of all CVEs (13 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.

Affected products

  • Arista Networks · EOS

    • affected 4.31.0 – ≤ 4.31.2F
    • affected 4.30.0 – ≤ 4.30.5M
    • affected 4.29.0 – ≤ 4.29.7M
    • affected 4.28.0 – ≤ 4.28.10M
    • affected 4.27.0 – ≤ 4.27.8M
    • affected 4.26.0 – ≤ 4.26.9M
    • affected 4.25.0 – ≤ 4.25.10M
    • affected 4.24.0 – ≤ 4.24.11M

What to do

Solution: 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. For more information about upgrading see EOS User Manual: Upgrades and Downgrades https://www.arista.com/en/um-eos/eos-upgrades-and-downgrades CVE-2024-27892 has been fixed in the following releases: * 4.31.3M and later releases in the 4.31.x train * 4.30.6M and later release in the 4.30.x train * 4.29.8M and later releases in the 4.29.x train * 4.28.11M and later releases in the 4.28.x train

Solution: The following hotfix can be applied to remediate CVE-2024-27892. The hotfix only applies to the releases listed below and no other releases. Note: Installing/uninstalling the SWIX will cause the OpenConfig/Octa process to restart. Services may be unavailable for up to one minute. EOS Versions 4.30.5 32 bit Version: 1.0 URL: https://www.arista.com/support/advisories-notices/sa-download/?sa99-CVE-2024-27890_CVE-2024-27892_4.30.5_32_Hotfix.swix SWIX hash:(SHA512) 85ec967b17231edd542800a4a5b305de93308ba5365c858470e7ce848bbc6c357be614f2f668b4a1d93c7afa2cb5e62ac12efda00874f6801dff35351da9ed93   64 bit Version: 1.0 URL: https://www.arista.com/support/advisories-notices/sa-download/?sa99-CVE-2024-27890_CVE-2024-27892_4.30.5_64_Hotfix.swix SWIX hash:(SHA512) 263331d15057c38e2e9c4af20f9795989ec962dc159c3136f4eb2e2370859866534b44a17ba9c2ec3249071ccfe83eb0047960693864de532de44fe36766fd70   EOS Versions 4.29.7 32 bit Version: 1.0 URL: https://www.arista.com/support/advisories-notices/sa-download/?sa99-CVE-2024-27890_CVE-2024-27892_4.29.7_32_Hotfix.swix SWIX hash:(SHA512) 0317d77d621fa648aa15d607c6db1a8f648da82e14e0886aea0525e0d726ff83a0ed507755b733d1644797dece85203dfe6998b65108b10ba5a9b9be8f57c4f0   64 bit Version: 1.0 URL: https://www.arista.com/support/advisories-notices/sa-download/?sa99-CVE-2024-27890_CVE-2024-27892_4.29.7_64_Hotfix.swix SWIX hash:(SHA512) d6d1d806fbd80d9d3972d8bb965b82cf1241c166ce960ff2af12de084c17160433188683fe48d5e3f24ba996e4b4262e95998683c50f80ce2f870fd3f02cbdc4   EOS Versions 4.28.10.1 32 bit Version: 1.0 URL: https://www.arista.com/support/advisories-notices/sa-download/?sa99-CVE-2024-27890_CVE-2024-27892_4.28.10.1_32_Hotfix.swix SWIX hash:(SHA512) 12ec36dd68decff5d81f68504dfdba0c01697153366c6de01ac5189c0250516a01d0128179155b21bd028cbbc1b634e8bc143244a2bed089824d4dc4b6c92449   64 bit Version: 1.0 URL: https://www.arista.com/support/advisories-notices/sa-download/?sa99-CVE-2024-27890_CVE-2024-27892_4.28.10.1_64_Hotfix.swix SWIX hash:(SHA512) 2f01a806867d6ffc95bef907164b3c92058382ccda5af006f66f350575a235a6f1ed491974b68dc952947d7cf9897028efa2266411e380da6a646719a420ec52   For instructions on installation and verification of the hotfix patch, refer to the  “managing eos extensions” https://www.arista.com/en/um-eos/eos-managing-eos-extensions  section in the EOS User Manual. Ensure that the patch is made persistent across reboots by running the command ‘copy installed-extensions boot-extensions’.

Workaround: The workaround is to disable gNMI Set requests. This can be done by applying per RPC authorization and ensuring no user is authorized to run the OpenConfig.Set command. switch(config-gnmi-transport-default)#show management api gnmi transport grpc default authorization requests Alternatively, TLS can be disabled: switch(config-gnmi-transport-default)#no ssl profile Alternatively, the OpenConfig agent can be disabled entirely: switch(config-gnmi-transport-default)#no management api gnmi

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .