Cloudflare wrangler prior 2.20.2/3.19.0 Workers Sandbox privileges management

Summaryinfo

A vulnerability labeled as critical has been found in Cloudflare wrangler. This issue affects some unknown processing of the component Workers Sandbox. Such manipulation leads to privileges management. This vulnerability is listed as CVE-2023-7080. The attack must be carried out from within the local network. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cloudflare wrangler (Cloud Software). It has been rated as critical. Affected by this issue is an unknown part of the component Workers Sandbox. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The V8 inspector intentionally allows arbitrary code execution within the Workers sandbox for debugging. wrangler dev would previously start an inspector server listening on all network interfaces. This would allow an attacker on the local network to connect to the inspector and run arbitrary code. Additionally, the inspector server did not validate Origin/Host headers, granting an attacker that can trick any user on the local network into opening a malicious website the ability to run code. If wrangler dev --remote was being used, an attacker could access production resources if they were bound to the worker. This issue was fixed in [email protected] and [email protected]. Whilst wrangler dev's inspector server listens on local interfaces by default as of [email protected], an SSRF vulnerability in miniflare https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-fwvg-2739-22v7  (CVE-2023-7078) allowed access from the local network until [email protected]. [email protected] and [email protected] introduced validation for the Origin/Host headers.

The weakness was presented 12/29/2023. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2023-7080 since 12/22/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 2.20.2 or 3.19.0 eliminates this vulnerability.

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Productinfo

Type

• Cloud Software

Vendor

• Cloudflare

Name

• wrangler

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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