What is CVE-2023-24021?

CVE-2023-24021 is a high-severity vulnerability in Trustwave Modsecurity, classified under Improper Null Termination. CVSS score: 7.5/10. Published 2023-01-20.

How severe is CVE-2023-24021?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Trustwave Modsecurity

CVE-2023-24021

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 collect…

EPSS: 0.009 (55.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Trustwave Modsecurity
Debian Debian_linux — versions 10.0
N/a — versions n/a

Weakness classification (CWE)

CWE-170 — Improper Null Termination

References

cve@mitre.org (Release Notes)
cve@mitre.org (Patch, Issue Tracking)
cve@mitre.org (Patch)
cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory)

Frequently asked questions

What is CVE-2023-24021?: CVE-2023-24021 is a high-severity vulnerability in Trustwave Modsecurity, classified under Improper Null Termination. CVSS score: 7.5/10. Published 2023-01-20.
How severe is CVE-2023-24021?: High severity. CVSS v3 base score is 7.5 out of 10.