What is the CVSS score of CVE-2019-13483?

CVE-2019-13483 has a CVSS 3.0 base score of 7.3 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.6%.

Is there a patch available for CVE-2019-13483?

Yes, a patch is available for CVE-2019-13483. Update the affected software to the latest version immediately.

Passport Sharepoint CVE-2019-13483

HIGH

Insufficient Verification of Data Authenticity (CWE-345)

2019-07-25 cve@mitre.org

Authentication Bypass Microsoft Passport Sharepoint

7.3

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.3 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

CVE Published

Jul 25, 2019 - 20:15 nvd

HIGH 7.3

DescriptionNVD

Auth0 Passport-SharePoint before 0.4.0 does not validate the JWT signature of an Access Token before processing. This allows attackers to forge tokens and bypass authentication and authorization mechanisms.

AnalysisAI

Auth0 Passport-SharePoint before 0.4.0 does not validate the JWT signature of an Access Token before processing. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-345. Auth0 Passport-SharePoint before 0.4.0 does not validate the JWT signature of an Access Token before processing. This allows attackers to forge tokens and bypass authentication and authorization mechanisms. Affected products include: Auth0 Passport-Sharepoint. Version information: before 0.4.0.

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.