Security restrictions bypass in SIPROTEC 4 and Siprotec Compact - CVE-2016-7114

 

Security restrictions bypass in SIPROTEC 4 and Siprotec Compact - CVE-2016-7114

Published: July 7, 2017


Vulnerability identifier: #VU7384
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-7114
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Siemens
Affected software:
SIPROTEC 4
Siprotec Compact

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass security restrictions.

The weakness exists due to an error related to EN100 Ethernet module. A remote attacker can send specially crafted HTTP request and bypass access restrictions.

Successful exploitation of the vulnerability results in administrative access to the system.

How to mitigate CVE-2016-7114

Update SIPROTEC 4 to version 4.29.
Update SIPROTEC Compact to version 4.29.

Sources