Via the GUI of the "bestinformed Infoclient", a low-privileged user is by default able to change the server address of the "bestinformed…
NCSC.ch·CWE-15·Published 2025-02-18
Via the GUI of the "bestinformed Infoclient", a low-privileged user is by default able to change the server address of the "bestinformed Server" to which this client connects. This is dangerous as the "bestinformed Infoclient" runs with elevated permissions ("nt authority\system"). By changing the server address to a malicious server, or a script simulating a server, the user is able to escalate his privileges by abusing certain features of the "bestinformed Web" server. Those features include: * Pushing of malicious update packages * Arbitrary Registry Read as "nt authority\system" An attacker is able to escalate his privileges to "nt authority\system" on the Windows client running the "bestinformed Infoclient". This attack is not possible if a custom configuration ("Infoclient.ini") containing the flags "ShowOnTaskbar=false" or "DisabledItems=stPort,stAddress" is deployed.
Via the GUI of the "bestinformed Infoclient", a low-privileged user is by default able to change the server address of the "bestinformed Server" to which this client connects. This is dangerous as the "bestinformed Infoclient" runs with elevated permissions ("nt authority\system"). By changing the server address to a malicious server, or a script simulating a server, the user is able to escalate his privileges by abusing certain features of the "bestinformed Web" server. Those features include: * Pushing of malicious update packages * Arbitrary Registry Read as "nt authority\system" An attacker is able to escalate his privileges to "nt authority\system" on the Windows client running the "bestinformed Infoclient". This attack is not possible if a custom configuration ("Infoclient.ini") containing the flags "ShowOnTaskbar=false" or "DisabledItems=stPort,stAddress" is deployed.
A través de la interfaz gráfica de usuario del "bestinformed Infoclient", un usuario con pocos privilegios puede cambiar de forma predeterminada la dirección del servidor del "bestinformed Server" al que se conecta este cliente. Esto es peligroso, ya que el "bestinformed Infoclient" se ejecuta con permisos elevados ("nt authority\system"). Al cambiar la dirección del servidor a un servidor malicioso o a un script que simule un servidor, el usuario puede aumentar sus privilegios abusando de ciertas características del servidor "bestinformed Web". Estas características incluyen: * Pushing of malicious update packages * Lectura arbitraria del registro como "nt authority\system" Un atacante puede aumentar sus privilegios a "nt authority\system" en el cliente de Windows que ejecuta el "bestinformed Infoclient". Este ataque no es posible si se implementa una configuración personalizada ("Infoclient.ini") que contenga los indicadores "ShowOnTaskbar=false" o "DisabledItems=stPort,stAddress".
| Version | Type | Source | Base | Exp | Impact | Vector |
|---|---|---|---|---|---|---|
| 4.0 | Primary | cve.org | 8.5 | — | — | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 4.0 | Secondary | NVD | 8.5 | — | — |
| CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/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 |