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SiemensCVE-2020-25229

HistoryDec 14, 2020 - 9:15 p.m.

CVE-2020-25229

2020-12-1421:15:19

CWE-321

CWE-798

siemens

web.nvd.nist.gov

cve-2020-25229

logo! 8 bm

siplus

replay attacks

vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

33.5%

JSON

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). The implemented encryption for communication with affected devices is prone to replay attacks due to the usage of a static key. An attacker could change the password or change the configuration on any affected device if using prepared messages that were generated for another device.

Affected configurations

Nvd

Node

siemenslogo\!_8_bm_firmwareRange<8.3

AND

siemenslogo\!_8_bmMatch-

VendorProductVersionCPE
siemenslogo\!_8_bm_firmware*cpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:*
siemenslogo\!_8_bm-cpe:2.3:h:siemens:logo\!_8_bm:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
siemens	logo\!_8_bm_firmware	*	cpe:2.3:o:siemens:logo\!_8_bm_firmware::::::::
siemens	logo\!_8_bm	-	cpe:2.3:h:siemens:logo\!_8_bm:-:::::::*

CNA Affected

[
  {
    "product": "LOGO! 8 BM (incl. SIPLUS variants)",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V8.3"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-480824.pdf

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

33.5%

JSON

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