Node.js directory traversal | CVE-2024-21896

NAME
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Node.js directory traversal

Platforms Affected:
Node.js Node.js 20.0
Node.js Node.js 21.0

Risk Level:
5.3

Exploitability:
Unproven

Consequences:
Gain Access

DESCRIPTION
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Node.js could allow a remote attacker to traverse directories on the system. By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, an attacker could send a specially crafted URL request containing “dot dot” sequences (/../) to read arbitrary files on the system.

CVSS 3.0 Information
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Privileges Required:
None

User Interaction:
None

Scope:
Unchanged

Access Vector:
Network


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