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 wrangler@3.19.0 and wrangler@2.20.2. Whilst wrangler dev's inspector server listens on local interfaces by default as of wrangler@3.16.0, 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 wrangler@3.18.0. wrangler@3.19.0 and wrangler@2.20.2 introduced validation for the Origin/Host headers.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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 wrangler@3.19.0 and wrangler@2.20.2. Whilst wrangler dev's inspector server listens on local
    interfaces by default as of wrangler@3.16.0, 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 wrangler@3.18.0. wrangler@3.19.0 and wrangler@2.20.2 introduced
    validation for the Origin/Host headers. (CVE-2023-7080)

ID	Name	Product	Family	Type	Severity
434895	SCA: security update for wrangler (GHSA-f8mp-x433-5wpf)	Tenable Cloud Security	SCA Checks	Local	high
434895	SCA: security update for wrangler (GHSA-f8mp-x433-5wpf)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
414389	SCA: security update for wrangler (GHSA-f8mp-x433-5wpf)	Tenable Cloud Security	SCA Checks	Local	high
414389	SCA: security update for wrangler (GHSA-f8mp-x433-5wpf)	Tenable Self-Hosted Container Security	SCA Checks	Local	high

Detections

Analytics

CVE-2023-7080

high

Tenable Plugins

high

high

high

high