CVE-2023-33966

HIGH

Missing "--allow-net" permission check for built-in Node modules

Published May 31, 2023Updated November 8, 2023Source: osv

Summary

### Impact Outbound HTTP requests made using the built-in "node:http" or "node:https" modules are incorrectly not checked against the network permission allow list (`--allow-net`). Dependencies relying on these built-in modules are subject to the vulnerability too. Users of Deno versions prior to 1.34.0 are unaffected. Deno Deploy users are unaffected. ### Patches This problem has been patched in Deno v1.34.1 and all users are recommended to update to this version. ### Workarounds No workaround is available for this issue.

Remediation

Upgrade to the fixed version using your package manager.

Cargo

Update deno to 1.34.1 or later

cargo update -p deno --precise 1.34.1

Cargo

Update deno_runtime to 0.115.0 or later

cargo update -p deno_runtime --precise 0.115.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Package	Ecosystem	Affected	Fixed In
deno	crates.io	1.34.0	1.34.1
deno_runtime	crates.io	0.114.0	0.115.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-269
Improper Privilege ManagementMITRE
CWE-276
Incorrect Default PermissionsMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.6 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

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

References

Frequently Asked Questions

What is CVE-2023-33966?: Missing "--allow-net" permission check for built-in Node modules This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.6/10).
How do I check if my project is affected by CVE-2023-33966?: CVE-2023-33966 affects deno and deno_runtime. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-33966 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

8.6

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-vc52-gwm3-8v2f

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