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CVE-2023-24021

Date: January 19, 2023

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.

Language: C

Severity Score

Related Resources (14)

https://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
https://access.redhat.com/security/cve/CVE-2023-24021
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
https://nvd.nist.gov/vuln/detail/CVE-2023-24021
https://security-tracker.debian.org/tracker/CVE-2023-24021
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%40lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
https://github.com/SpiderLabs/ModSecurity/pull/2857
https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.7
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
https://www.mend.io/vulnerability-database/CVE-2023-24021

Severity Score

Weakness Type (CWE)

Improper Null Termination

CWE-170

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

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