Vulnerability identifier: #VU14416
Vulnerability risk: Low
CVSSv3.1: 8.1 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-276
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
SIMATIC WinCC (TIA Portal)
Server applications /
SCADA systems
SIMATIC STEP 7 (TIA Portal)
Server applications /
SCADA systems
Vendor: Siemens
Description
The vulnerability allows a remote attacker to gain elevated privileges on the target system.
The vulnerability exists due to improper file permissions in the default installation of TIA Portal. A local unauthenticated attacker can transfer the manipulated files to a device and cause the service to crash or execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
SIMATIC WinCC (TIA Portal): 10.0 - 15.0
SIMATIC STEP 7 (TIA Portal): 10.0 - 15.0
External links
http://cert-portal.siemens.com/productcert/pdf/ssa-979106.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.