Vulnerability identifier: #VU16506
Vulnerability risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-693
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
SINUMERIK 808D
Hardware solutions /
Firmware
SINUMERIK 840D
Hardware solutions /
Firmware
SINUMERIK 828D
Server applications /
SCADA systems
Vendor: Siemens
Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to protection mechanism failure. A local attacker can modify a user-writeable configuration file and execute arbitrary code after reboot or manual initiation with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Update SINUMERIK 828D to version 4.7 SP6 HF1.
Update SINUMERIK 840D to version 4.7 SP6 HF5 or 4.8 SP3.
Vulnerable software versions
SINUMERIK 808D: All versions
SINUMERIK 828D: All versions
SINUMERIK 840D: All versions
External links
http://cert-portal.siemens.com/productcert/pdf/ssa-170881.pdf
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.