Vulnerability · Published Mar 6, 2024 · Assigned by GitHub_M

CVE-2024-27302Authorization Bypass Through User-Controlled Key in go-zero

Critical 9.1

In plain English

A critical-severity authorization bypass via user-controlled key in go-zero from zeromicro. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.8%top 44.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

go-zero is a web and rpc framework. Go-zero allows user to specify a CORS Filter with a configurable allows param - which is an array of domains allowed in CORS policy. However, the `isOriginAllowed` uses `strings.HasSuffix` to check the origin, which leads to bypass via a malicious domain. This vulnerability is capable of breaking CORS policy and thus allowing any page to make requests and/or retrieve data on behalf of other users. Version 1.4.4 fixes this issue.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/zeromicro/go-zero1.4.4GHSA-fgxv-gw55-r5fq
Gogithub.com/zeromicro/go-zero1.4.4GO-2024-2604

Affected products (as reported)

VendorProductVersions
zeromicro go-zero < 1.4.4

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References