CVE-2023-7078

Server-Side Request Forgery (SSRF) in Miniflare

Description

Sending specially crafted HTTP requests to Miniflare's server could result in arbitrary HTTP and WebSocket requests being sent from the server. If Miniflare was configured to listen on external network interfaces (as was the default in wrangler until 3.19.0), an attacker on the local network could access other local servers.

Remediation

Workaround:

  • Ensure Miniflare is configured to listen on just local interfaces. This is the default behaviour, but can also be configured with the host: "127.0.0.1" option.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.05%
Third-Party Advisory github.com
Affected: Cloudflare miniflare
Published at:
Updated at:

References

Link Tags
https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-fwvg-2739-22v7 third party advisory patch
https://github.com/cloudflare/workers-sdk/pull/4532 patch

Frequently Asked Questions

What is the severity of CVE-2023-7078?
CVE-2023-7078 has been scored as a high severity vulnerability.
How to fix CVE-2023-7078?
As a workaround for remediating CVE-2023-7078: Ensure Miniflare is configured to listen on just local interfaces. This is the default behaviour, but can also be configured with the host: "127.0.0.1" option.
Is CVE-2023-7078 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-7078 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-7078?
CVE-2023-7078 affects Cloudflare miniflare.
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