#VU10886 Security restrictions bypass in Siemens products
Vulnerability identifier: #VU10886
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-326
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Siprotec Compact
Hardware solutions /
Security hardware applicances
SIPROTEC 4
Hardware solutions /
Security hardware applicances
SIPROTEC Compact 7SK80
Hardware solutions /
Security hardware applicances
SIPROTEC Compact 7SJ80
Hardware solutions /
Security hardware applicances
SIPROTEC 4 7SJ66
Hardware solutions /
Security hardware applicances
EN100 Ethernet module IEC 104 variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module DNP3 TCP variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module Modbus TCP variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module PROFINET IO variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module IEC 61850 variant
Hardware solutions /
Security hardware applicances
DIGSI 4
Hardware solutions /
Security hardware applicances
Vendor: Siemens
Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to inadequate encryption strength. A remote attacker with local access to the engineering system or in a privileged network position can capture certain network traffic, and possibly reconstruct access authorization passwords.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Siprotec Compact: All versions
SIPROTEC 4: All versions
SIPROTEC Compact 7SK80: All versions
SIPROTEC Compact 7SJ80: All versions
SIPROTEC 4 7SJ66: All versions
EN100 Ethernet module IEC 104 variant: All versions
EN100 Ethernet module DNP3 TCP variant: All versions
EN100 Ethernet module Modbus TCP variant: All versions
EN100 Ethernet module PROFINET IO variant: All versions
EN100 Ethernet module IEC 61850 variant: All versions
DIGSI 4: All versions
External links
http://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
