Vulnerability identifier: #VU86606
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
OpenPCS 7
Server applications /
SCADA systems
SIMATIC BATCH
Server applications /
SCADA systems
SIMATIC Route Control
Server applications /
SCADA systems
SIMATIC WinCC Runtime Professional
Server applications /
SCADA systems
Siemens SIMATIC WinCC
Server applications /
SCADA systems
SIMATIC PCS 7
Server applications /
SCADA systems
Vendor: Siemens
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the implementation of the RPC (Remote Procedure call) communication protocol. A remote attacker on the local network can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
OpenPCS 7: 9.1
SIMATIC BATCH: 9.1
SIMATIC Route Control: 9.1
SIMATIC WinCC Runtime Professional: 18.0 - 19.0
Siemens SIMATIC WinCC: 7.4 - 8.0
SIMATIC PCS 7: 9.1
External links
http://cert-portal.siemens.com/productcert/html/ssa-753746.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.