Bitmask Riseup VPN 0.21.6 contains a local privilege escalation flaw due to improper access controls. When the software is installed with a non-default installation directory off of the system root, the installer fails to properly set ACLs. This allows lower privileged users to replace the VPN executable with a malicious one. When a higher privileged user such as an Administrator launches that executable, it is possible for the lower privileged user to escalate to Administrator privileges.
[
{
"product": "Bitmask Riseup VPN 0.21.6",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "0.21.6"
}
]
}
]