SB2017071402 - Two vulnerabilities in Siemens SIMATIC Sm@rtClient Android App
Published: July 14, 2017
Security Bulletin ID
SB2017071402
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Man-in-the-middle attack (CVE-ID: CVE-2017-6870)
CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform a man-in-the-middle attack.
The weakness exists due to an error when TLS protocol implementation. A remote attacker can conduct MITM attack to read and modify data within a TLS session.
2) Authentication bypass (CVE-ID: CVE-2017-6871)
CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel
CVSSv4: 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:U/U:Clear
The vulnerability allows a remote attacker to bypass authentication.
The weakness exists due to unknown error. A local attacker can use alternate path or channel to bypass the app’s authentication mechanism.
Remediation
Install update from vendor's website.