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nvd[email protected]NVD:CVE-2020-26160
HistorySep 30, 2020 - 6:15 p.m.

CVE-2020-26160

2020-09-3018:15:27
CWE-287
CWE-755
web.nvd.nist.gov
6
jwt-go
security
vulnerability
access restrictions
type assertion
audience check

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

57.0%

jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m[โ€œaudโ€] (which is allowed by the specification). Because the type assertion fails, โ€œโ€ is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check.

Affected configurations

Nvd
Node
jwt-go_projectjwt-goRangeโ‰ค3.2.0
VendorProductVersionCPE
jwt-go_projectjwt-go*cpe:2.3:a:jwt-go_project:jwt-go:*:*:*:*:*:*:*:*

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

57.0%