ICSA-20-196-05: Siemens UMC Stack (Update H)
CISA advisory · released 2020-07-14
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 10, 2022-08-09 (final)
CISA's summary
Summary: The products listed below contain two security vulnerabilities in the UMC component that could allow an attacker to cause a partial denial- of-service of the UMC component, or to locally escalate privileges from a user with administrative privileges to execute code with SYSTEM level privileges. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | Opcenter Execution Discrete | <V3.2 |
| Siemens | Opcenter Execution Foundation | <V3.2 |
| Siemens | Opcenter Execution Process | <V3.2 |
| Siemens | Opcenter Intelligence | <V3.3 |
| Siemens | Opcenter Quality | <V11.3 |
| Siemens | Opcenter RD&L | V8.0 |
| Siemens | SIMATIC IT LMS | <V2.6 |
| Siemens | SIMATIC IT Production Suite | <V8.0 |
| Siemens | SIMATIC Notifier Server for Windows | vers:all/* |
| Siemens | SIMATIC PCS neo | <V3.0_SP1 |
| Siemens | SIMATIC STEP 7 (TIA Portal) V15 | <V15.1_Update_5 |
| Siemens | SIMATIC STEP 7 (TIA Portal) V16 | <V16_Update_2 |
| Siemens | SIMOCODE ES V15.1 | <V15.1_Update_4 |
| Siemens | SIMOCODE ES V16 | <V16_Update_1 |
| Siemens | Soft Starter ES V15.1 | <V15.1_Update_3 |
| Siemens | Soft Starter ES V16 | <V16_Update_1 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2020-7581 — CVE-2020-7581 · CWE-428
A component within the affected application calls a helper binary with SYSTEM privileges during startup while the call path is not quoted. This could allow a local attacker with administrative privileges to execute code with SYSTEM level privileges.
- CVE-2020-7587 — CVE-2020-7587 · CWE-400
Sending multiple specially crafted packets to the affected service could cause a partial remote denial-of-service, that would cause the service to restart itself. On some cases the vulnerability could leak random information from the remote service.
- CVE-2020-7588 — CVE-2020-7588 · CWE-20
Sending a specially crafted packet to the affected service could cause a partial remote denial-of-service, that would cause the service to restart itself.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting these vulnerabilities to CISA.
- Victor Fidalgo, INCIBE: coordinating disclosure of CVE-2020-7581
- Reid Wightman, Dragos: coordinating disclosure of CVE-2020-7581 and CVE-2020-7587
The advisory's legal notice
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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