Vulnerability Report

CVE-2021-32631

Title: Common Module JWT Signature Bypass (Authentication Bypass)

Authentication Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2021-32631.

CWE Category CWE-290
Published Date Jul 26, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 6.5 CVSS v3.1
Exploit Probability (EPSS)
0.25%

Vulnerability Summary

CVE-2021-32631: Common is a package of common modules that can be accessed by NIMBLE services. Common before commit number 3b96cb0293d3443b870351945f41d7d55cb34b53 did not properly verify the signature of JSON Web Tokens. This allows someone to forge a valid JWT. Being able to forge JWTs may lead to authentication bypasses. Commit number 3b96cb0293d3443b870351945f41d7d55cb34b53 contains a patch for the issue. As a workaround, one may use the parseClaimsJws method to correctly verify the signature of a JWT.

Impacted Vendors

D
doctrine-project 1
N
nimble-project 1

Reference Links

https://github.com/nimble-platform/common/commit/12197a755bd524559bf4e16475595a2c6fcd34db https://github.com/nimble-platform/common/commit/3b96cb0293d3443b870351945f41d7d55cb34b53 https://github.com/nimble-platform/common/commit/a59ad46733912a5580530e39cac0e6ebc83cc563 https://github.com/nimble-platform/common/security/advisories/GHSA-fjq8-896w-pv28 https://github.com/nimble-platform/common/commit/12197a755bd524559bf4e16475595a2c6fcd34db https://github.com/nimble-platform/common/commit/3b96cb0293d3443b870351945f41d7d55cb34b53 https://github.com/nimble-platform/common/commit/a59ad46733912a5580530e39cac0e6ebc83cc563 https://github.com/nimble-platform/common/security/advisories/GHSA-fjq8-896w-pv28
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:S/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-32631 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Stack

No specific products linked.