HOMEVULNERABILITIESCVE-2013-2765
MEDIUMPOC

CVE-2013-2765

CWE-476Published: July 15, 2013· Updated: Jun 16, 2026

5.0
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2013-2765 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2013-2765. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityNone
AvailabilityP
AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected Vendors & Products

Apache1 product(s)
http server
openSUSE1 product(s)
opensuse
trustwave1 product(s)
modsecurity
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=967615
PATCHhttps://github.com/SpiderLabs/ModSecurity/commit/0840b13612a0b7ef1ce7441cf811dcfc6b463fba
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=967615
PATCHhttps://github.com/SpiderLabs/ModSecurity/commit/0840b13612a0b7ef1ce7441cf811dcfc6b463fba
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
ADVISORYhttp://sourceforge.net/mailarchive/message.php?msg_id=30900019
ADVISORYhttp://www.modsecurity.org/
ADVISORYhttp://www.shookalabs.com/
ADVISORYhttps://github.com/shookalabs/exploits/blob/master/modsecurity_cve_2013_2765_check.py
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
ADVISORYhttp://sourceforge.net/mailarchive/message.php?msg_id=30900019
ADVISORYhttp://www.modsecurity.org/
ADVISORYhttp://www.shookalabs.com/
ADVISORYhttps://github.com/shookalabs/exploits/blob/master/modsecurity_cve_2013_2765_check.py

All References (22)

→
http://archives.neohapsis.com/archives/bugtraq/2013-05/0125.htmlBroken Link
→
http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.htmlMailing List · Third Party Advisory
→
http://sourceforge.net/mailarchive/message.php?msg_id=30900019Third Party Advisory
→
http://www.modsecurity.org/Vendor Advisory
→
http://www.shookalabs.com/Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=967615Issue Tracking · Patch · Third Party Advisory
→
https://github.com/SpiderLabs/ModSecurity/commit/0840b13612a0b7ef1ce7441cf811dcfc6b463fbaPatch · Third Party Advisory
→
https://github.com/shookalabs/exploits/blob/master/modsecurity_cve_2013_2765_check.pyExploit · Third Party Advisory
→
https://raw.github.com/SpiderLabs/ModSecurity/master/CHANGESBroken Link
→
http://archives.neohapsis.com/archives/bugtraq/2013-05/0125.htmlBroken Link
→
http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.htmlMailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2013-2765
CVSS Score5.0 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
ExploitPOC
Affected3 vendor(s)
PublishedJul 15, 2013

Related CVEs (CWE-476)

CVE-2022-36648
10.0
CVE-2010-2495
10.0
CVE-2016-6692
9.8
CVE-2016-3821
9.8
CVE-2015-0573
9.8
CVE-2017-7614
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2013-2765 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2013-2765·NVD