CVE-2024-27302: go-zero — Exploit & Fix

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.

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CVSS v3.1 Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-639 CWE-639

Affected Products

Vendor	Product	Versions
go-zero	go-zero	< 1.4.4

References

Advisories & Patches

https://github.com/zeromicro/go-zero/commit/d9d79e930dff6218a873f4f02115df61c38b15db https://github.com/zeromicro/go-zero/security/advisories/GHSA-fgxv-gw55-r5fq https://github.com/zeromicro/go-zero/commit/d9d79e930dff6218a873f4f02115df61c38b15db https://github.com/zeromicro/go-zero/security/advisories/GHSA-fgxv-gw55-r5fq

Exploits

https://github.com/zeromicro/go-zero/security/advisories/GHSA-fgxv-gw55-r5fq https://github.com/zeromicro/go-zero/security/advisories/GHSA-fgxv-gw55-r5fq

Frequently Asked Questions

What is CVE-2024-27302? +

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. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2024-27302? +

CVE-2024-27302 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-27302? +

CVE-2024-27302 affects products from go-zero, specifically: go-zero. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27302? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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