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IcscertCVE-2021-27503

HistoryAug 02, 2021 - 9:15 p.m.

CVE-2021-27503

2021-08-0221:15:08

CWE-798

icscert

web.nvd.nist.gov

ypsomed

mylife cloud

mylife mobile app

communication protocol

encryption

man-in-the-middle attack

cve-2021-27503

nvd

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

28.5%

JSON

Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application encrypts on the application layer of the communication protocol between the Ypsomed mylife App and mylife Cloud credentials based on hard-coded secrets, which allows man-in-the-middle attackers to tamper with messages.

Affected configurations

Nvd

Node

ypsomedmylifeRange<1.7.5

ypsomedmylife_cloudRange<1.7.2

VendorProductVersionCPE
ypsomedmylife*cpe:2.3:a:ypsomed:mylife:*:*:*:*:*:*:*:*
ypsomedmylife_cloud*cpe:2.3:a:ypsomed:mylife_cloud:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
ypsomed	mylife	*	cpe:2.3:a:ypsomed:mylife::::::::
ypsomed	mylife_cloud	*	cpe:2.3:a:ypsomed:mylife_cloud::::::::

CNA Affected

[
  {
    "product": "Ypsomed mylife Cloud, mylife Mobile Application",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5"
      }
    ]
  }
]

References

us-cert.cisa.gov/ics/advisories/icsma-21-196-01

Social References

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

4.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

28.5%

JSON

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