Vulnerability identifier: #VU29945

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7587

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Opcenter Execution Discrete
Server applications / SCADA systems
Opcenter Execution Foundation
Server applications / SCADA systems
Opcenter Execution Process
Server applications / SCADA systems
Opcenter Intelligence
Server applications / SCADA systems
Opcenter Quality
Server applications / SCADA systems
Opcenter RD&L
Server applications / SCADA systems
SIMATIC IT LMS
Server applications / SCADA systems
SIMATIC IT Production Suite
Server applications / SCADA systems
SIMATIC Notifier Server for Windows
Server applications / SCADA systems
SIMATIC STEP 7 (TIA Portal)
Server applications / SCADA systems
SIMOCODE ES
Server applications / SCADA systems
SIMATIC PCS neo
Web applications / Other software
Soft Starter ES
Other software / Other software solutions

Vendor: Siemens

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Opcenter Execution Discrete: All versions

Opcenter Execution Foundation: All versions

Opcenter Execution Process: All versions

Opcenter Intelligence: All versions

Opcenter Quality: All versions

Opcenter RD&L: 8.0

SIMATIC IT LMS: All versions

SIMATIC IT Production Suite: All versions

SIMATIC Notifier Server for Windows: All versions

SIMATIC PCS neo: All versions

SIMATIC STEP 7 (TIA Portal): 15.0 - 16.0

SIMOCODE ES: All versions

Soft Starter ES: All versions

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External links
http://cert-portal.siemens.com/productcert/pdf/ssa-841348.pdf

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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.