CVE-2013-2765

ModSecurity - Remote Null Pointer Dereference

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

El módulo ModSecurity anterior a 2.7.4 para Apache HTTP Server, permite a atacantes remotos provocar una denegación de servicio (deferencia a puntero NULO, caída de proceso y consumo de disco) a través de una petición POST con un cuerpo (body) de gran tamaño y una cabecera Content-Type manipulada.

When ModSecurity receives a request body with a size bigger than the value set by the SecRequestBodyInMemoryLimit and with a Content-Type that has no request body processor mapped to it, ModSecurity will systematically crash on every call to forceRequestBodyVariable (in phase 1).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-04-07 CVE Reserved
2013-05-29 CVE Published
2013-05-29 First Exploit
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (13)

URL	Tag	Source
http://archives.neohapsis.com/archives/bugtraq/2013-05/0125.html	Broken Link
http://sourceforge.net/mailarchive/message.php?msg_id=30900019	Mailing List
http://www.shookalabs.com	Third Party Advisory
https://raw.github.com/SpiderLabs/ModSecurity/master/CHANGES	Broken Link

URL	Date	SRC
https://packetstorm.news/files/id/121815	2013-05-29
https://www.exploit-db.com/exploits/25852	2013-05-31
https://github.com/shookalabs/exploits/blob/master/modsecurity_cve_2013_2765_check.py	2024-08-06

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=967615	2021-02-10
https://github.com/SpiderLabs/ModSecurity/commit/0840b13612a0b7ef1ce7441cf811dcfc6b463fba	2021-02-10

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html	2021-02-10
http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html	2021-02-10
http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html	2021-02-10
http://www.modsecurity.org	2021-02-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Trustwave Search vendor "Trustwave"	Modsecurity Search vendor "Trustwave" for product "Modsecurity"	< 2.7.4 Search vendor "Trustwave" for product "Modsecurity" and version " < 2.7.4"	-	Affected	in	Apache Search vendor "Apache"	Http Server Search vendor "Apache" for product "Http Server"	*	-	Safe
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				11.4 Search vendor "Opensuse" for product "Opensuse" and version "11.4"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				12.2 Search vendor "Opensuse" for product "Opensuse" and version "12.2"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				12.3 Search vendor "Opensuse" for product "Opensuse" and version "12.3"		-		Affected