SALTO ProAccess Space Authorization Bypass Through User-Controlled Key

SALTO ProAccess Space software using the tenancy feature / logical partition is vulnerable to a privilege escalation attack that could allow an authorized attacker to access any space managed by the affected product.

An issue was discovered in SALTO ProAccess SPACE 5.4.3.0. The product's webserver runs as a Windows service with local SYSTEM permissions by default. This is against the principle of least privilege. An attacker who is able to exploit CVE-2019-19458 or CVE-2019-19459 is basically able to write to every single path on the file system, because the webserver is running with the highest privileges available.

An issue was discovered in SALTO ProAccess SPACE 5.4.3.0. An attacker can write arbitrary content to arbitrary files, as demonstrated by CVE-2019-19458 files under the web root, or .bat files that will be used with auto start. This allows an attacker to execute arbitrary commands on the server.

SALTO ProAccess SPACE 5.4.3.0 allows Directory Traversal in the Data Export feature.

SALTO ProAccess SPACE 5.4.3.0 allows XSS.