CVE-2023-7079

Summary

Sending specially crafted HTTP requests and inspector messages to Wrangler's dev server could result in any file on the user's computer being accessible over the local network. An attacker that could trick any user on the local network into opening a malicious website could also read any file.

Affected Software

VendorProductVersion RangeStatus
Cloudflarewrangler0 <= 3.9.0affected
Cloudflarewrangler0 < 3.19.0affected

Weaknesses

  • CWE-287: CWE-287 Improper Authentication

Workarounds

Configure Wrangler to listen on local interfaces instead with wrangler dev –ip 127.0.0.1. This is the default as of wrangler@3.16.0 https://github.com/cloudflare/workers-sdk/security/advisories/GHSA-f8mp-x433-5wpf , and removes the local network as an attack vector, but does not prevent an attack from visiting a malicious website.

ADP Enrichment

CVE Program Container

Additional References

References