CVE-2013-3843

Monkey HTTP Daemon < 1.2.1 - Stack-Based Buffer Overflow via Crafted HTTP Header

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2013-3843. Includes Metasploit module auxiliary/dos/http/monkey_headers.

AI-analyzed exploit summary This Metasploit module exploits a denial-of-service vulnerability in Monkey HTTPD by sending a malformed HTTP request with improperly formatted headers, causing a segmentation fault. The exploit targets versions <= 1.2.0 and verifies the server's status post-exploitation.

Description

Stack-based buffer overflow in the mk_request_header_process function in mk_request.c in Monkey HTTP Daemon (monkeyd) before 1.2.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTTP header.

Exploits (1)

metasploit WORKING POC
rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/dos/http/monkey_headers.rb

This Metasploit module exploits a denial-of-service vulnerability in Monkey HTTPD by sending a malformed HTTP request with improperly formatted headers, causing a segmentation fault. The exploit targets versions <= 1.2.0 and verifies the server's status post-exploitation.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Monkey HTTPD <= 1.2.0
No auth needed
Prerequisites: Network access to the target server · Monkey HTTPD service running on port 2001
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/53697
Issue Tracking x_refsource_confirm
https://github.com/monkey/monkey/issues/88
Vendor Advisory x_refsource_confirm
http://monkey-project.com/Announcements/v1.2.1
Various Sources x_refsource_confirm
http://bugs.monkey-project.com/ticket/182
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/84755
Third Party Advisory mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2013-06/0015.html

Scores

EPSS 0.4015
EPSS Percentile 97.4%

Details

CWE
CWE-119
Status published
Products (1)
monkey-project/monkey < 1.2.0
Published Jun 13, 2014
Tracked Since Feb 18, 2026