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[email protected]CVE-2020-15957

HistoryJul 30, 2020 - 2:15 p.m.

CVE-2020-15957

2020-07-3014:15:12

CWE-347

[email protected]

web.nvd.nist.gov

issue

dp3t-backend-sdk

bypass

signature check

alg=none

security vulnerability

nvd

cve-2020-15957

5 Medium

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

7.5 High

CVSS3

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

0.001 Low

EPSS

Percentile

41.6%

JSON

An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T). When it is configured to check JWT before uploading/publishing keys, it is possible to skip the signature check by providing a JWT token with alg=none.

Affected configurations

NVD

Node

dp3t-backend-software_development_kit_projectdp3t-backend-software_development_kitRange<1.1.1

CPENameOperatorVersion
dp3t-backend-software_development_kit_project:dp3t-backend-software_development_kitdp3t-backend-software development kit project dp3t-backend-software development kitlt1.1.1

CPE	Name	Operator	Version
dp3t-backend-software_development_kit_project:dp3t-backend-software_development_kit	dp3t-backend-software development kit project dp3t-backend-software development kit	lt	1.1.1

References

github.com/dp-3T/dp3t-sdk-backend

github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0

github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3

5 Medium

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

7.5 High

CVSS3

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

0.001 Low

EPSS

Percentile

41.6%

JSON

Related for CVE-2020-15957

osv1 nvd1 cvelist1 prion1