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SiemensCVE-2021-33716

HistorySep 14, 2021 - 11:15 a.m.

CVE-2021-33716

2021-09-1411:15:24

CWE-312

siemens

web.nvd.nist.gov

cve-2021-33716

simatic cp 1543-1

simatic cp 1545-1

security vulnerability

unauthorized access

subnet

cleartext

nvd

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

AI Score

Confidence

High

EPSS

0.001

Percentile

26.0%

JSON

A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions < V3.0), SIMATIC CP 1545-1 (All versions < V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.

Affected configurations

Nvd

Node

siemenssimatic_cp_1543-1Match-

AND

siemenssimatic_cp_1543-1_firmwareRange<3.0

Node

siemenssimatic_cp_1545-1Match-

AND

siemenssimatic_cp_1545-1_firmwareRange<1.1

VendorProductVersionCPE
siemenssimatic_cp_1543-1-cpe:2.3:h:siemens:simatic_cp_1543-1:-:*:*:*:*:*:*:*
siemenssimatic_cp_1543-1_firmware*cpe:2.3:o:siemens:simatic_cp_1543-1_firmware:*:*:*:*:*:*:*:*
siemenssimatic_cp_1545-1-cpe:2.3:h:siemens:simatic_cp_1545-1:-:*:*:*:*:*:*:*
siemenssimatic_cp_1545-1_firmware*cpe:2.3:o:siemens:simatic_cp_1545-1_firmware:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
siemens	simatic_cp_1543-1	-	cpe:2.3:h:siemens:simatic_cp_1543-1:-:::::::*
siemens	simatic_cp_1543-1_firmware	*	cpe:2.3:o:siemens:simatic_cp_1543-1_firmware::::::::
siemens	simatic_cp_1545-1	-	cpe:2.3:h:siemens:simatic_cp_1545-1:-:::::::*
siemens	simatic_cp_1545-1_firmware	*	cpe:2.3:o:siemens:simatic_cp_1545-1_firmware::::::::

CNA Affected

[
  {
    "product": "SIMATIC CP 1543-1 (incl. SIPLUS variants)",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V3.0"
      }
    ]
  },
  {
    "product": "SIMATIC CP 1545-1",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V1.1"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-535997.pdf

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

AI Score

Confidence

High

EPSS

0.001

Percentile

26.0%

JSON

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