CVE-2020-25242
First published: Wed May 12 2021(Updated: )
A vulnerability has been identified in SIMATIC NET CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Standard (incl. SIPLUS variants) (All versions). Specially crafted packets sent to TCP port 102 could cause a Denial-of-Service condition on the affected devices. A cold restart might be necessary in order to recover.
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens SIMATIC NET CP 343-1 Advanced firmware | ||
| Siemens SIMATIC NET CP 343-1 Lean Firmware | ||
| Siemens SIMATIC NET CP 343-1 Standard | ||
| Siemens SIMATIC CP343-1 Advanced Firmware | ||
| siemens SIMATIC NET CP 343-1 Advanced | ||
| Siemens SIPLUS NET CP 343-1 Lean firmware | ||
| Siemens SIMATIC NET CP 343-1 Lean Firmware | ||
| Siemens SIMATIC NET CP 343-1 Standard | ||
| Siemens SIMATIC NET CP 343-1 Standard |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-25242?
The severity of CVE-2020-25242 is classified as high due to the potential remote code execution risk.
How do I fix CVE-2020-25242?
To fix CVE-2020-25242, apply the latest firmware updates provided by Siemens for the affected SIMATIC NET CP 343-1 devices.
What systems are affected by CVE-2020-25242?
CVE-2020-25242 affects all versions of Siemens SIMATIC NET CP 343-1 Advanced, Lean, and Standard including SIPLUS variants.
What type of attack is facilitated by CVE-2020-25242?
CVE-2020-25242 allows attackers to send specially crafted packets to TCP port 102, potentially causing a denial of service.
Is there a workaround for CVE-2020-25242 if I cannot apply the patch immediately?
A temporary workaround for CVE-2020-25242 includes disabling TCP port 102 communication until the firmware update can be applied.
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- collector/mitre-cve
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- agent/trending
- agent/source
- collector/ics-cert-advisory
- source/ICS
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- vendor/siemens
- canonical/siemens simatic net cp 343-1 advanced firmware
- canonical/siemens simatic net cp 343-1 lean firmware
- canonical/siemens simatic net cp 343-1 standard
- canonical/siemens simatic cp343-1 advanced firmware
- canonical/siemens simatic net cp 343-1 advanced
- canonical/siemens siplus net cp 343-1 lean firmware