Trustwave: Security Vulnerabilities
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is `application/json`, and there is at least one rule which does a `sanitiseMatchedBytes` action. A patch is available at pull request 3389 and expected to be part of version 2.9.9. No known workarounds are available.
CVSS Score
7.5
EPSS Score
0.001
Published
2025-05-21
Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.
CVSS Score
7.5
EPSS Score
0.001
Published
2025-02-25
A buffer overflow in modsecurity v3.0.12 allows attackers to cause a Denial of Service (DoS) via a crafted input inserted into the name parameter. NOTE: this is disputed by the Supplier because it cannot be reproduced. Also, the product's documentation indicates that it is not guaranteed to be usable with very large values of SecRequestBodyNoFilesLimit (which are required by the claimed issue).
CVSS Score
7.5
EPSS Score
0.001
Published
2024-10-09
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.
CVSS Score
7.5
EPSS Score
0.001
Published
2023-01-20
In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase.
CVSS Score
7.5
EPSS Score
0.005
Published
2023-01-20
ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4.
CVSS Score
7.5
EPSS Score
0.022
Published
2021-12-07
The STARTTLS implementation in MailMarshal before 7.2 allows plaintext command injection.
CVSS Score
9.8
EPSS Score
0.06
Published
2020-02-19
Trustwave Secure Web Gateway (SWG) through 11.8.0.27 allows remote attackers to append an arbitrary public key to the device's SSH Authorized Keys data, and consequently obtain remote root access, via the publicKey parameter to the /sendKey URI.
CVSS Score
9.8
EPSS Score
0.208
Published
2017-12-31
apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header.
CVSS Score
5.0
EPSS Score
0.008
Published
2014-04-15
The ModSecurity module before 2.7.4 for the Apache HTTP Server allows remote attackers to cause a denial of service (NULL pointer dereference, process crash, and disk consumption) via a POST request with a large body and a crafted Content-Type header.
CVSS Score
5.0
EPSS Score
0.043
Published
2013-07-15
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