Vulnerabilities > CVE-2013-3843 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Monkey-Project Monkey

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
monkey-project
CWE-119
nessus
metasploit

Summary

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.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Metasploit

descriptionThis module causes improper header parsing that leads to a segmentation fault due to a specially crafted HTTP request. Affects version <= 1.2.0.
idMSF:AUXILIARY/DOS/HTTP/MONKEY_HEADERS
last seen2020-06-10
modified2017-07-24
published2013-06-13
referenceshttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3843
reporterRapid7
sourcehttps://github.com/rapid7/metasploit-framework/blob/master//modules/auxiliary/dos/http/monkey_headers.rb
titleMonkey HTTPD Header Parsing Denial of Service (DoS)

Nessus

NASL familyGentoo Local Security Checks
NASL idGENTOO_GLSA-201309-17.NASL
descriptionThe remote host is affected by the vulnerability described in GLSA-201309-17 (Monkey HTTP Daemon: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Monkey HTTP Daemon. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could send a specially crafted request, resulting in possible arbitrary code execution or a Denial of Service condition. Workaround : There is no known workaround at this time.
last seen2020-06-01
modified2020-06-02
plugin id70129
published2013-09-26
reporterThis script is Copyright (C) 2013-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/70129
titleGLSA-201309-17 : Monkey HTTP Daemon: Multiple vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201309-17.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(70129);
  script_version("1.8");
  script_cvs_date("Date: 2018/07/11 17:09:26");

  script_cve_id("CVE-2013-2163", "CVE-2013-3724", "CVE-2013-3843");
  script_bugtraq_id(60210, 60333, 60425);
  script_xref(name:"GLSA", value:"201309-17");

  script_name(english:"GLSA-201309-17 : Monkey HTTP Daemon: Multiple vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201309-17
(Monkey HTTP Daemon: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Monkey HTTP Daemon.
      Please review the CVE identifiers referenced below for details.
  
Impact :

    A remote attacker could send a specially crafted request, resulting in
      possible arbitrary code execution or a Denial of Service condition.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201309-17"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Monkey HTTP Daemon users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=www-servers/monkeyd-1.2.2'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:monkeyd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/09/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"www-servers/monkeyd", unaffected:make_list("ge 1.2.2"), vulnerable:make_list("lt 1.2.2"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Monkey HTTP Daemon");
}

Packetstorm

data sourcehttps://packetstormsecurity.com/files/download/121886/monkey120-dos.txt
idPACKETSTORM:121886
last seen2016-12-05
published2013-06-04
reporterdougtko
sourcehttps://packetstormsecurity.com/files/121886/Monkey-1.2.0-Buffer-Overflow.html
titleMonkey 1.2.0 Buffer Overflow