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CVE-2021-33737

nvd nist
Published: Sep 14, 2021Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD (Secondary)

Description

A vulnerability has been identified in SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 ERPC (All versions), SIMATIC CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3). Sending a specially crafted packet to port 102/tcp of an affected device could cause a denial of service condition. A restart is needed to restore normal operations.

Affected (6)

Siemens
6 products
Simatic Cp 343 1 Firmware
Simatic Cp 343 1 Advanced Firmware
Simatic Cp 343 1 Erpc Firmware
Simatic Cp 343 1 Lean Firmware
Simatic Cp 443 1 Firmware
Simatic Cp 443 1 Advanced Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Cp 343 1 Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Cp343 1
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Cp 343 1 Advanced Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Cp343 1 Advanced
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Cp 343 1 Erpc Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Cp 343 1 Erpc
All versions
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Cp 343 1 Lean Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Cp 343 1 Lean
All versions
Configuration E
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Cp 443 1 Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Cp 443 1
All versions
Configuration F
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Cp 443 1 Advanced Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Cp 443 1 Advanced
All versions

Related CWEs

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (2)

Source: productcert@siemens.com
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory

Timeline

No history available yet.