CVE-2024-27302
Go-zero allows user to specify a CORS Filter with a configurable allows param - which is an array of domains allowed in CORS policy.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.77% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-639
- Affected
- go-zero/go-zero
- Source
- security-advisories@github.com
References
- https://github.com/zeromicro/go-zero/commit/d9d79e930dff6218a873f4f02115df61c38b15dbPatch
- https://github.com/zeromicro/go-zero/security/advisories/GHSA-fgxv-gw55-r5fqExploit, Vendor Advisory
- https://github.com/zeromicro/go-zero/commit/d9d79e930dff6218a873f4f02115df61c38b15dbPatch
- https://github.com/zeromicro/go-zero/security/advisories/GHSA-fgxv-gw55-r5fqExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.