#VU18818 Permissions, Privileges, and Access Controls in SIMATIC Ident MV440 and SIMATIC Ident MV420
Vulnerability identifier: #VU18818
Vulnerability risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L/E:P/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
SIMATIC Ident MV440
Server applications /
SCADA systems
SIMATIC Ident MV420
Server applications /
SCADA systems
Vendor: Siemens
Description
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to a flaw in the integrated webserver. A remote authenticated attacker can escalate privileges by sending specially crafted requests to the integrated webserver.
Mitigation
- By setting the DISA bit, changes to the project by logged-in users can be prevented
- Protect network access to affected devices.
Vulnerable software versions
SIMATIC Ident MV440: 1.0
SIMATIC Ident MV420: 1.0
External links
http://cert-portal.siemens.com/productcert/pdf/ssa-816980.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
