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[email protected]CVE-2021-23846

HistoryJun 18, 2021 - 2:15 p.m.

CVE-2021-23846

2021-06-1814:15:07

CWE-319

[email protected]

web.nvd.nist.gov

cve-2021-23846

http protocol

clear text transmission

mitm attack

firmware update

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

5.7 Medium

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.2%

JSON

When using http protocol, the user password is transmitted as a clear text parameter for which it is possible to be obtained by an attacker through a MITM attack. This will be fixed starting from Firmware version 3.11.5, which will be released on the 30th of June, 2021.

Affected configurations

NVD

Node

boschb426_firmwareMatch03.01.0004

boschb426_firmwareMatch03.02.002

boschb426_firmwareMatch03.03.0009

boschb426_firmwareMatch03.05.0003

AND

boschb426Match-

CPENameOperatorVersion
bosch:b426_firmwarebosch b426 firmwareeq03.01.0004
bosch:b426_firmwarebosch b426 firmwareeq03.02.002
bosch:b426_firmwarebosch b426 firmwareeq03.03.0009
bosch:b426_firmwarebosch b426 firmwareeq03.05.0003

CPE	Name	Operator	Version
bosch:b426_firmware	bosch b426 firmware	eq	03.01.0004
bosch:b426_firmware	bosch b426 firmware	eq	03.02.002
bosch:b426_firmware	bosch b426 firmware	eq	03.03.0009
bosch:b426_firmware	bosch b426 firmware	eq	03.05.0003

CNA Affected

[
  {
    "product": "B426 Firmware",
    "vendor": "Bosch",
    "versions": [
      {
        "status": "affected",
        "version": "03.01.0004"
      },
      {
        "status": "affected",
        "version": "03.02.002"
      },
      {
        "status": "affected",
        "version": "03.05.0003"
      },
      {
        "status": "affected",
        "version": "03.03.0009"
      }
    ]
  }
]

References

psirt.bosch.com/security-advisories/bosch-sa-196933-bt.html

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

5.7 Medium

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.2%

JSON

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