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CVE-2024-27302

Go-zero broken access control

9.1 CRITICALPublic exploitEPSS 0.77%
  1. Published6 Mar 2024

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 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Go-zero< 1.4.4

Remediation

Fixed in
Go-zero≥ 1.4.4

References

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Frequently asked

Is CVE-2024-27302 being actively exploited?

CVE-2024-27302 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.77%.

How severe is CVE-2024-27302?

CVE-2024-27302 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.77% probability of exploitation.

Which products are affected by CVE-2024-27302?

Affected products include Go-zero.

How do I fix CVE-2024-27302?

Upgrade affected software to a fixed version, for example Go-zero 1.4.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-27302 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.