Vulnerability Details : CVE-2023-4853

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.
Published 2023-09-20 10:15:15
Updated 2023-12-21 01:02:06
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2023-4853

Exploit prediction scoring system (EPSS) score for CVE-2023-4853

EPSS FAQ
0.37%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-4853

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
8.1
 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.2
5.9
 NIST
8.1
 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.2
5.9
 Red Hat, Inc.

CWE ids for CVE-2023-4853

  • The product does not properly handle when a leading character or sequence ("leader") is missing or malformed, or if multiple leaders are used when only one should be allowed.
    Assigned by: secalert@redhat.com (Secondary)
  • The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2023-4853

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