9.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-49583

CVE-2023-49583: Escalation of privileges in @sap/xssec

SAP BTP Security Services Integration Library ([Node.js] @sap/xssec - versions < 3.6.0, allow under certain conditions an escalation of privileges. On successful exploitation, an unauthenticated attacker can obtain arbitrary permissions within the application.

(GitHub Advisory)

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CVE-2023-49583

CVE-2023-49583:

9.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
@sap/xssec	npm	< 3.6.0	3.6.0

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

Without specific patch information, I've identified the most likely vulnerable functions based on the CVE description, CWE classifications, and the npm package documentation. The vulnerability is described as allowing 'escalation of privileges' where 'an unauthenticated attacker can obtain arbitrary permissions'. This strongly suggests issues in the token validation and permission checking functions. The main functions involved in these processes according to the documentation are createSecurityContext (for token validation) and the scope checking methods (for permission validation). The acceptsToken function is also included as it's part of the token validation process. These functions align with the CWE classifications of Improper Privilege Management (CWE-269), Authorization Bypass Through User-Controlled Key (CWE-639), and Exposed Dangerous Method or Function (CWE-749).

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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