CVE-2023-24021
HIGH7.5EPSS 0.14%Published: 1/20/2023Modified: 4/28/2026
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.
Affected packages (3)
- Bitnami/modsecurityfrom 0, < 2.9.7
- Bitnami/modsecurity2from 0, < 2.9.7
- Debian/modsecurity-apachefrom 0, < 2.9.3-3+deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
References (9)
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-24021
- WEBhttps://github.com/SpiderLabs/ModSecurity/pull/2857
- WEBhttps://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334
- WEBhttps://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.7
- WEBhttps://lists.debian.org/debian-lts-announce/2023/01/msg00023.html
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2023-24021