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Known exploited vulnerability

CVE-2023-28434

highCVSS 3.1 8.8In CISA KEVEPSS 7.9%Published · minio

The short answer

CVE-2023-28434 affects minio minio and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-09-19: attackers are using it, so patch it first. Fixed versions are published for github.com/minio/minio (0.0.0-202303200415).

What it is

Minio is a Multi-Cloud Object Storage framework. Prior to RELEASE.2023-03-20T20-16-18Z, an attacker can use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket`. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access. This issue has been patched in RELEASE.2023-03-20T20-16-18Z. As a workaround, enable browser API access and turn off `MINIO_BROWSER=off`.

Weakness: CWE-269.

Severity

8.8 high

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

Exploited (CISA KEV)

Yes, since Sep 19, 2023

Federal due date Oct 10, 2023

EPSS, next 30 days

7.9%

Higher than 95% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected packages and fixed versions

PackageEcosystemFixed inAdvisory
github.com/minio/minioGo0.0.0-202303200415GHSA-2pxw-r47w-4p8c

Is it in your code? Drop your lockfile into the free vulnerability check, or let vulnerability watch check your repository every day and open the upgrade as a pull request.

Affected products

minio. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2023-28434 being exploited?

Yes. CISA added CVE-2023-28434 to its Known Exploited Vulnerabilities catalog on 2023-09-19, with a federal remediation due date of 2023-10-10.

How do I fix CVE-2023-28434?

Upgrade to a fixed version: github.com/minio/minio (Go) 0.0.0-202303200415. CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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