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CVE-2020-37281— Gravitee API Management through 4.12.22 Default JWT Secret Authentication Bypass

Quick assessment

Affected
Gravitee Gravitee API Management
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gravitee API Management through 4.12.22 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to impersonate any user by forging JWTs signed with the shipped default jwt.secret. Attackers knowing an existing user ID can s

CVSS 8.1 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
Gravitee Gravitee API Management ≤ 4.12.22 affected
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I. Basic Information for CVE-2020-37281

Vulnerability Information

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Vulnerability Title
Gravitee API Management through 4.12.22 Default JWT Secret Authentication Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Gravitee API Management through 4.12.22 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to impersonate any user by forging JWTs signed with the shipped default jwt.secret. Attackers knowing an existing user ID can sign an HS256 token with that subject and present it as a bearer token to the Management API, impersonating administrators to gain full platform control.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1394
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Gravitee Gravitee API Management 0 ~ 4.12.22 -

II. Public POCs for CVE-2020-37281

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III. Intelligence Information for CVE-2020-37281

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Other References for CVE-2020-37281 (4)

IV. Related Vulnerabilities

Same weakness: CWE-1394

V. Comments for CVE-2020-37281

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