Modsecurity
CVE-2023-24021
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-170. 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 products include: Trustwave Modsecurity, Debian Debian Linux. Version information: before 2.9.7.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
More in Modsecurity
View allLibmodsecurity is one component of the ModSecurity v3 project. Rated high severity (CVSS 7.9), this vulnerability is rem
ModSecurity versions prior to 2.9.10 contain a denial of service vulnerability in the `sanitiseArg` and `sanitizeArg` ac
ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Rated high severity (CVSS 7.5), this vulnerabi
Trustwave ModSecurity 3.x through 3.0.4 allows denial of service via a special request. Rated high severity (CVSS 7.5),
The mod_security2 module before 2.7.0 for the Apache HTTP Server allows remote attackers to bypass rules, and deliver ar
ModSecurity 3.0.0 has XSS via an onerror attribute of an IMG element. Rated medium severity (CVSS 6.1), this vulnerabili
The ModSecurity module before 2.7.4 for the Apache HTTP Server allows remote attackers to cause a denial of service (NUL
apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer codi
WAF filtering bypass in OWASP ModSecurity (libmodsecurity) before 3.0.16 lets remote unauthenticated attackers smuggle m
ModSecurity / libModSecurity 3.0.0 to 3.0.11 is affected by a WAF bypass for path-based payloads submitted via specially
ModSecurity before 2.7.3 allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cau
A buffer overflow in modsecurity v3.0.12 allows attackers to cause a Denial of Service (DoS) via a crafted input inserte
Same weakness CWE-170 – Improper Null Termination
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today