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SiemensCVE-2021-42023

HistoryDec 14, 2021 - 12:15 p.m.

CVE-2021-42023

2021-12-1412:15:09

CWE-522

siemens

web.nvd.nist.gov

cve-2021-42023

modelsim

questa

simulation

vulnerability

rsa

white-box

implementation

electronic intellectual property

ieee 1735

nvd

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

23.8%

JSON

A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built-in private keys that are required to decrypt electronic intellectual property (IP) data in accordance with the IEEE 1735 recommended practice. This could allow a sophisticated attacker to discover the keys, bypassing the protection intended by the IEEE 1735 recommended practice.

Affected configurations

Nvd

Node

siemensmodelsim

siemensquesta

VendorProductVersionCPE
siemensmodelsim*cpe:2.3:a:siemens:modelsim:*:*:*:*:*:*:*:*
siemensquesta*cpe:2.3:a:siemens:questa:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
siemens	modelsim	*	cpe:2.3:a:siemens:modelsim::::::::
siemens	questa	*	cpe:2.3:a:siemens:questa::::::::

CNA Affected

[
  {
    "vendor": "Siemens",
    "product": "ModelSim Simulation",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Siemens",
    "product": "Questa Simulation",
    "versions": [
      {
        "version": "All versions",
        "status": "affected"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-400332.pdf

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

23.8%

JSON

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