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Review reviewHigh

CVE-2023-4853

Red Hat Openshift Serverless 1 on RHEL 8, Red Hat build of OptaPlanner 8, Red Hat build of Quarkus 2.13.8.SP2

A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.

CVSS
8.1
EPSS
1.21%
65.6% percentile
CISA KEV
Not listed
Published
2023.09.20
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability1.21%
Technical severityCVSS 8.1

Vulnerability overview

A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.

Affected product and versions

Product
Red Hat Openshift Serverless 1 on RHEL 8, Red Hat build of OptaPlanner 8, Red Hat build of Quarkus 2.13.8.SP2
Affected versions
< 2.16.11, >= 3.2.0 < 3.2.6, >= 3.3.0 < 3.3.3, 8.0, >= 2.13.0 < 2.13.8, 7.0, < 1.10.2, 1, 1.0, 4.10, 4.11, 4.12
Fixed versions
2.16.11, 3.2.6, 3.3.3, 2.13.8, 1.10.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Red Hat Openshift Serverless 1 on RHEL 8, Red Hat build of OptaPlanner 8, Red Hat build of Quarkus 2.13.8.SP2 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-148, CWE-863