On systems running Arista EOS and CloudEOS with the affected release version, when using shared secret profiles the password configured for use by BiDirectional Forwarding Detection (BFD) will be leaked when displaying output over eAPI or other JSON outputs to other authenticated users on the device. The affected EOS Versions are: all releases in 4.22.x train, 4.23.9 and below releases in the 4.23.x train, 4.24.7 and below releases in the 4.24.x train, 4.25.4 and below releases in the 4.25.x train, 4.26.1 and below releases in the 4.26.x train
The recommended resolution is to upgrade to a remediated software version at your earliest convenience. The vulnerability is fixed in the following EOS versions: 4.23.10 and later releases 4.24.8 and later releases 4.25.5 and later releases 4.26.2 and later releases For an immediate remediation until EOS can be upgraded, a hotfix SWIX is available to be installed as EOS extension to fix the issue. Release versions: 4.22.0 - 4.25.0 URL: https://www.arista.com/assets/data/SecurityAdvisories/SA69/SecurityAdvisory0069Hotfix-4.22-4.25.0.swix SWIX hash: (SHA512)36fc77d7ff5de2aacfff822bac4e054137a5ebf7d54f283cd4d4be05f15a2c1e448245080e0be11122831bb672d1d777724a8bcbbf029e32a3611d6002e2cf10 Release versions: 4.25.1 - 4.26.1 URL: https://www.arista.com/assets/data/SecurityAdvisories/SA69/SecurityAdvisory0069Hotfix-4.25.1-4.26.1.swix SWIX hash: (SHA512)c8d5a8ab801c7e45dbc0f062f738f3af72084b451a7734c5607a884d648d88b37d7a8451d09dd0a051728199f4b6b0c0bef76b5c3862a668298410cbce55e085
The restriction of access to the related CLI show command of specified role type can be used as an immediate mitigation. The detailed instructions of role-based authorization can be found at https://www.arista.com/um-eos/eos-user-security#xx1347683.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Arista Networks Arista EOS | >=EOS-4.22<=EOS-4.22.12 | EOS-4.22.12 | advisory ↗ |
| Arista Networks Arista EOS | >=EOS-4.23<EOS-4.23.10 | EOS-4.23.10 | advisory ↗ |
| Arista Networks Arista EOS | >=EOS-4.24<EOS-4.24.8 | EOS-4.24.8 | advisory ↗ |
| Arista Networks Arista EOS | >=EOS-4.25<EOS-4.25.5 | EOS-4.25.5 | advisory ↗ |
| Arista Networks Arista EOS | >=EOS-4.26<EOS-4.26.2 | EOS-4.26.2 | advisory ↗ |