CVE-2021-33737

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-33737
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References
Link Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf Patch Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:siemens:simatic_cp_343-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp343-1:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:siemens:simatic_cp_343-1_advanced_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp343-1_advanced:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:siemens:simatic_cp_343-1_erpc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_343-1_erpc:*:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:siemens:simatic_cp_343-1_lean_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_343-1_lean:*:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:siemens:simatic_cp_443-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_443-1:*:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:siemens:simatic_cp_443-1_advanced_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_443-1_advanced:*:*:*:*:*:*:*:*
History

11 Apr 2023, 10:15

Type Values Removed Values Added
Summary 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 (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 Advanced (All versions), SIMATIC CP 443-1 Advanced (incl. SIPLUS variants) (All versions), SIPLUS NET CP 443-1 Advanced (All versions). 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. 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.

14 Jun 2022, 10:15

Type Values Removed Values Added
Summary 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 (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 Advanced (incl. SIPLUS variants) (All versions). 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. 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 (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 Advanced (All versions), SIMATIC CP 443-1 Advanced (incl. SIPLUS variants) (All versions), SIPLUS NET CP 443-1 Advanced (All versions). 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.

14 Dec 2021, 12:15

Type Values Removed Values Added
Summary 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 (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 Advanced (incl. SIPLUS variants) (All versions). 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. 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 (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 Advanced (incl. SIPLUS variants) (All versions). 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.

28 Sep 2021, 15:38

Type Values Removed Values Added
CPE cpe:2.3:o:siemens:simatic_cp_343-1_erpc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_443-1_advanced:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp343-1:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_343-1_erpc:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_443-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_343-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_343-1_lean_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_443-1:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_343-1_advanced_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp343-1_advanced:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cp_443-1_advanced_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_cp_343-1_lean:*:*:*:*:*:*:*:*
References (MISC) https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf - (MISC) https://cert-portal.siemens.com/productcert/pdf/ssa-549234.pdf - Patch, Vendor Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 7.8
v3 : 7.5

14 Sep 2021, 11:42

Type Values Removed Values Added
New CVE
Information

Published : 2021-09-14 11:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-33737

Mitre link : CVE-2021-33737

CVE.ORG link : CVE-2021-33737

JSON object : View

Products Affected

siemens

  • simatic_cp_343-1_erpc
  • simatic_cp343-1
  • simatic_cp_343-1_firmware
  • simatic_cp_443-1_firmware
  • simatic_cp_443-1
  • simatic_cp_443-1_advanced_firmware
  • simatic_cp_443-1_advanced
  • simatic_cp343-1_advanced
  • simatic_cp_343-1_lean
  • simatic_cp_343-1_lean_firmware
  • simatic_cp_343-1_erpc_firmware
  • simatic_cp_343-1_advanced_firmware
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer