CVE-2023-24021

modsecurity: lacking the complete content in FILES_TMP_CONTENT leads to web application firewall bypass

Published Jan 20, 2023 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the FILES_TMP_CONTENT collection.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3283-1 modsecurity-apache security update
EUVD EUVD EUVD-2023-28085 Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the FILES_TMP_CONTENT collection.
Ubuntu USN Ubuntu USN USN-6370-1 ModSecurity vulnerabilities
History
Type Values Removed Values Added
Weaknesses CWE-170
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Apr 2, 2025, 4:18 PM
Reserved
Jan 20, 2023, 12:00 AM
Status
Modified
Published
Jan 20, 2023, 7:15 PM
Modified
Jun 17, 2026, 5:38 AM
Severity
Moderate
Public date
Jan 20, 2023, 12:00 AM