CVE-2023-7080
Cloudflare Workers SSRF and Code Execution Vulnerability
Description
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.
INFO
Published Date :
Dec. 29, 2023, 12:15 p.m.
Last Modified :
Jan. 5, 2024, 6:09 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.8
Exploitability Score :
2.1
Public PoC/Exploit Available at Github
CVE-2023-7080 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-7080.
| URL | Resource |
|---|---|
| https://github.com/cloudflare/workers-sdk/issues/4430 | Issue Tracking Patch |
| https://github.com/cloudflare/workers-sdk/pull/4437 | Patch |
| https://github.com/cloudflare/workers-sdk/pull/4535 | Patch |
| https://github.com/cloudflare/workers-sdk/pull/4550 | Patch |
| https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-f8mp-x433-5wpf | Mitigation Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Deployment stack for a vulnerable proxy server setup. (DubheCTF 2024 "authenticated mess & unauthenticated less" challenge)
Dockerfile JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-7080 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-7080 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 05, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/cloudflare/workers-sdk/issues/4430 No Types Assigned https://github.com/cloudflare/workers-sdk/issues/4430 Issue Tracking, Patch Changed Reference Type https://github.com/cloudflare/workers-sdk/pull/4437 No Types Assigned https://github.com/cloudflare/workers-sdk/pull/4437 Patch Changed Reference Type https://github.com/cloudflare/workers-sdk/pull/4535 No Types Assigned https://github.com/cloudflare/workers-sdk/pull/4535 Patch Changed Reference Type https://github.com/cloudflare/workers-sdk/pull/4550 No Types Assigned https://github.com/cloudflare/workers-sdk/pull/4550 Patch Changed Reference Type https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-f8mp-x433-5wpf No Types Assigned https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-f8mp-x433-5wpf Mitigation, Patch, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:* versions from (including) 2.0.0 up to (excluding) 2.20.2 *cpe:2.3:a:cloudflare:wrangler:*:*:*:*:*:node.js:*:* versions from (including) 3.0.0 up to (excluding) 3.19.0 -
CVE Received by [email protected]
Dec. 29, 2023
Action Type Old Value New Value Added Description 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. Added Reference Cloudflare, Inc. https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-f8mp-x433-5wpf [No types assigned] Added Reference Cloudflare, Inc. https://github.com/cloudflare/workers-sdk/issues/4430 [No types assigned] Added Reference Cloudflare, Inc. https://github.com/cloudflare/workers-sdk/pull/4437 [No types assigned] Added Reference Cloudflare, Inc. https://github.com/cloudflare/workers-sdk/pull/4535 [No types assigned] Added Reference Cloudflare, Inc. https://github.com/cloudflare/workers-sdk/pull/4550 [No types assigned] Added CWE Cloudflare, Inc. CWE-269 Added CVSS V3.1 Cloudflare, Inc. AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-7080 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-7080
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.01%
score
0.18579
percentile