Denial of service in Siemens SIPROTEC 4 and SIPROTEC Compact

Published: 2015-07-17 00:00:00 | Updated: 2017-07-07 15:19:43
Severity Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2015-5374
CVSSv3 7.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CWE ID CWE-20
Exploitation vector Network
Public exploit Not available
Vulnerable software SIPROTEC 4
Siprotec Compact
Vulnerable software versions SIPROTEC 4 4.24
Siprotec Compact 4.24
Vendor URL Siemens

Security Advisory

1) Denial of service

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to an error in the EN100 module. A remote attacker can send specially crafted packets to UDP port 50000 and cause the system to crash.

Successful exploitation of the vulnerability results in denial of service.

Remediation

Update SIPROTEC 4 to version 4.25.
Update SIPROTEC Compact to version 4.25.

External links

https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-732541.pdf

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