What is the CVSS score of CVE-2022-31053?

CVE-2022-31053 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.0%.

Is there a public PoC exploit available for CVE-2022-31053?

Yes, a public proof-of-concept exploit is available for CVE-2022-31053. Prioritise patching immediately. EPSS: 1.0%.

Is there a patch available for CVE-2022-31053?

Yes, a patch is available for CVE-2022-31053. Update the affected software to the latest version immediately.

Jwt Attack CVE-2022-31053

CRITICAL

Improper Verification of Cryptographic Signature (CWE-347)

2022-06-13 security-advisories@github.com

Information Disclosure Jwt Attack Java Biscuit Auth Biscuit Go Biscuit Haskell Biscuit Java

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jun 13, 2022 - 20:15 nvd

CRITICAL 9.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 maven packages depend on com.clever-cloud:biscuit-java (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 2.0.0.

DescriptionNVD

Biscuit is an authentication and authorization token for microservices architectures. The Biscuit specification version 1 contains a vulnerable algorithm that allows malicious actors to forge valid Γ-signatures. Such an attack would allow an attacker to create a token with any access level. The version 2 of the specification mandates a different algorithm than gamma signatures and as such is not affected by this vulnerability. The Biscuit implementations in Rust, Haskell, Go, Java and Javascript all have published versions following the v2 specification. There are no known workarounds for this issue.

AnalysisAI

Biscuit is an authentication and authorization token for microservices architectures. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-347. Biscuit is an authentication and authorization token for microservices architectures. The Biscuit specification version 1 contains a vulnerable algorithm that allows malicious actors to forge valid Γ-signatures. Such an attack would allow an attacker to create a token with any access level. The version 2 of the specification mandates a different algorithm than gamma signatures and as such is not affected by this vulnerability. The Biscuit implementations in Rust, Haskell, Go, Java and Javascript all have published versions following the v2 specification. There are no known workarounds for this issue. Affected products include: Biscuitsec Biscuit-Auth, Biscuitsec Biscuit-Go, Biscuitsec Biscuit-Haskell, Clever-Cloud Biscuit-Java. Version information: version 1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.