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[email protected]NVD:CVE-2021-33831

HistorySep 07, 2021 - 6:15 a.m.

CVE-2021-33831

2021-09-0706:15:07

CWE-770

[email protected]

web.nvd.nist.gov

cve-2021-33831

api

incorrect access control

tracing

infection chains

random users

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

29.7%

JSON

api/account/register in the TH Wildau COVID-19 Contact Tracing application through 2021-09-01 has Incorrect Access Control. An attacker can interfere with tracing of infection chains by creating 500 random users within 2500 seconds.

Affected configurations

Nvd

Node

th-wildaucovid-19_contact_tracingRange≤2021-09-01

VendorProductVersionCPE
th-wildaucovid-19_contact_tracing*cpe:2.3:a:th-wildau:covid-19_contact_tracing:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
th-wildau	covid-19_contact_tracing	*	cpe:2.3:a:th-wildau:covid-19_contact_tracing::::::::

References

github.com/lanmarc77/CVE-2021-33831

www.th-wildau.de/studieren-weiterbilden/neuigkeiten-und-veranstaltungen/corona/

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

29.7%

JSON

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