CVE-2023-24021
First published: Fri Jan 20 2023(Updated: )
In ModSecurity before 2.9.7, FILES_TMP_CONTENT sometimes lacked the complete content. This can lead to a Web Application Firewall bypass. <a href="https://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334">https://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334</a> <a href="https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.7">https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.7</a> <a href="https://github.com/SpiderLabs/ModSecurity/pull/2857">https://github.com/SpiderLabs/ModSecurity/pull/2857</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Trustwave ModSecurity | <2.9.7 | |
| Debian Debian Linux | =10.0 | |
| ubuntu/modsecurity-apache | <2.9.2-1ubuntu0.1~ | 2.9.2-1ubuntu0.1~ |
| ubuntu/modsecurity-apache | <2.9.3-1ubuntu0.1 | 2.9.3-1ubuntu0.1 |
| ubuntu/modsecurity-apache | <2.9.5-1ubuntu0.1~ | 2.9.5-1ubuntu0.1~ |
| ubuntu/modsecurity-apache | <2.9.0-1ubuntu0.1~ | 2.9.0-1ubuntu0.1~ |
| ubuntu/modsecurity-apache | <2.9.7-1 | 2.9.7-1 |
| redhat/ModSecurity | <2.9.7 | 2.9.7 |
| debian/modsecurity-apache | <=2.9.3-1+deb10u1<=2.9.3-3+deb11u1 | 2.9.3-1+deb10u2 2.9.3-3+deb11u2 2.9.7-1 |
Remedy
https://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334
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Reference Links
- https://github.com/SpiderLabs/ModSecurity/pull/2857
- https://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334
- https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.7
- https://lists.debian.org/debian-lts-announce/2023/01/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
- https://launchpad.net/bugs/cve/CVE-2023-24021
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2163649
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2163650
- https://access.redhat.com/errata/RHSA-2023:4628
- https://access.redhat.com/errata/RHSA-2023:4629
- https://access.redhat.com/security/cve/cve-2023-24021
- https://bugzilla.redhat.com/show_bug.cgi?id=2163615
- https://github.com/SpiderLabs/ModSecurity/commit/4324f0ac59f8225aa44bc5034df60dbeccd1d334
- https://security-tracker.debian.org/tracker/CVE-2023-24021
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-24021
- https://github.com/SpiderLabs/ModSecurity/commit/4324f0ac59f8225aa44bc5034df60dbeccd1d334 (v2.9.7)
- https://ubuntu.com/security/notices/USN-6370-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-24021
- https://ubuntu.com/security/CVE-2023-24021
Frequently Asked Questions
What is CVE-2023-24021?
CVE-2023-24021 is a vulnerability in ModSecurity before 2.9.7 that allows for Web Application Firewall bypasses and buffer over-reads when handling '\0' bytes in file uploads.
How does CVE-2023-24021 affect ModSecurity?
CVE-2023-24021 affects ModSecurity versions before 2.9.7, allowing for Web Application Firewall bypasses and buffer over-reads.
What is the severity of CVE-2023-24021?
The severity of CVE-2023-24021 is medium (CVSS score of 4).
How do I fix CVE-2023-24021?
To fix CVE-2023-24021, update ModSecurity to version 2.9.7 or later.
Where can I find more information about CVE-2023-24021?
You can find more information about CVE-2023-24021 on the official ModSecurity GitHub page and the provided references.
- collector/nvd-index
- agent/type
- agent/remedy
- agent/last-modified-date
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/usn-cve
- source/Ubuntu
- agent/software-canonical-lookup
- collector/nvd-cve
- source/NVD
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-24021
- agent/references
- agent/severity
- agent/tags
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- vendor/trustwave
- canonical/trustwave modsecurity
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- package-manager/ubuntu
- package-manager/redhat
- package-manager/debian