CVE-2018-4847
A vulnerability has been identified in SIMATIC WinCC OA Operator iOS App (All versions). Insufficient protection of sensitive information (e.g. session key for accessing server) in Siemens WinCC OA Operator iOS app could allow an attacker with physical access to the mobile device to read unencrypted data from the app’s directory. At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens provides mitigations to resolve the security issue.
Source: CVE-2018-4847