The Versa Concerto SD-WAN orchestration platform is vulnerable to an privileges escalation and container escape vulnerability caused by unsafe default mounting of host binary paths that allow the container to modify host paths. The escape can be used to trigger remote code execution or direct host access depending on the host operating system configuration.This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.

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 internal Actuator endpoint can be leveraged for access to heap dumps and trace logs.This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.

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.

The Versa Director offers REST APIs for orchestration and management. By design, certain APIs, such as the login screen, banner display, and device registration, do not require authentication. However, it was discovered that for Directors directly connected to the Internet, one of these APIs can be exploited by injecting invalid arguments into a GET request, potentially exposing the authentication tokens of other currently logged-in users. These tokens can then be used to invoke additional APIs on port 9183. This exploit does not disclose any username or password information. Currently, there are no workarounds in Versa Director. However, if there is Web Application Firewall (WAF) or API Gateway fronting the Versa Director, it can be used to block access to the URLs of vulnerable API. /vnms/devicereg/device/ (on ports 9182 & 9183) and /versa/vnms/devicereg/device/ (on port 443). Versa recommends that Directors be upgraded to one of the remediated software versions. This vulnerability is not exploitable on Versa Directors not exposed to the Internet.We have validated that no Versa-hosted head ends have been affected by this vulnerability. Please contact Versa Technical Support or Versa account team for any further assistance.

The Versa Director GUI contains an unrestricted upload of file with dangerous type vulnerability that allows administrators with Provider-Data-Center-Admin or Provider-Data-Center-System-Admin privileges to customize the user interface. The “Change Favicon” (Favorite Icon) enables the upload of a .png file, which can be exploited to upload a malicious file with a .png extension disguised as an image.