CVE-2025-34027
Versa Concerto Authentication Bypass File Write Remote Code Execution
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Versa Concerto Authentication Bypass File Write Remote Code Execution
The Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The Spack upload endpoint can be leveraged for a Time-of-Check to Time-of-Use (TOCTOU) write in combination with a race condition to achieve remote code execution via path loading manipulation, allowing an unauthenticated actor to achieve remote code execution (RCE).This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.
Reserved 2025-04-15 | Published 2025-05-21 | Updated 2025-05-28 | Assigner VulnCheckCWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-287 Improper Authentication
ProjectDiscovery
Harsh Jaiswal
Rahul Maini
Parth Malhotra
projectdiscovery.io/...sa-concerto-authentication-bypass-rce
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