MailEnable IMAP Server W3C Logging Overflow - Nessus

High Plugin ID: 19783

This page contains detailed information about the MailEnable IMAP Server W3C Logging Overflow Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 19783
Name: MailEnable IMAP Server W3C Logging Overflow
Filename: mailenable_imap_logging_overflow.nasl
Vulnerability Published: 2005-10-03
This Plugin Published: 2005-10-04
Last Modification Time: 2018-11-15
Plugin Version: 1.19
Plugin Type: remote
Plugin Family: Windows
Dependencies: imap4_banner.nasl, smtpserver_detect.nasl
Excluded KB Items [?]: imap/false_imap

Vulnerability Information

Severity: High
Vulnerability Published: 2005-10-03
Patch Published: N/A
CVE [?]: CVE-2005-3155
CPE [?]: cpe:/a:mailenable:mailenable

Synopsis

The remote IMAP server is prone to a buffer overflow attack.

Description

The remote host is running a version of MailEnable's IMAP service that is prone to a buffer overflow attack involving its handling of W3C logging. An attacker may be able to exploit this to execute arbitrary code subject to the privileges of the affected application, typically Administrator.

Solution

Apply the 3 October 2005 IMAP Rollup Critical Update/Performance Improvement Hotfix referenced in the vendor advisory above.

Public Exploits

Target Network Port(s): 25, 143
Target Asset(s): Services/imap, Services/smtp
Exploit Available: True (Metasploit Framework, Exploit-DB)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the MailEnable IMAP Server W3C Logging Overflow vulnerability:

Metasploit: exploit/windows/imap/mailenable_w3c_select
[MailEnable IMAPD W3C Logging Buffer Overflow]
Exploit-DB: exploits/windows/remote/16480.rb
[EDB-16480: MailEnable - IMAPD W3C Logging Buffer Overflow (Metasploit)]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.2 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.2 (Medium)

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(19783);
  script_version("1.19");
  script_cvs_date("Date: 2018/11/15 20:50:27");

  script_cve_id("CVE-2005-3155");
  script_bugtraq_id(15006);

  script_name(english:"MailEnable IMAP Server W3C Logging Overflow");
  script_summary(english:"Checks for logging buffer overflow vulnerability in in MailEnable's IMAP service");

  script_set_attribute(attribute:"synopsis", value:
"The remote IMAP server is prone to a buffer overflow attack." );
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of MailEnable's IMAP service
that is prone to a buffer overflow attack involving its handling of
W3C logging.  An attacker may be able to exploit this to execute
arbitrary code subject to the privileges of the affected application,
typically Administrator." );
  script_set_attribute(attribute:"see_also", value:"https://www.mailenable.com/forum/viewtopic.php?t=8555" );
  script_set_attribute(attribute:"see_also", value:"http://www.mailenable.com/hotfix/" );
  script_set_attribute(attribute:"solution", value:
"Apply the 3 October 2005 IMAP Rollup Critical Update/Performance
Improvement Hotfix referenced in the vendor advisory above." );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/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:"metasploit_name", value:'MailEnable IMAPD W3C Logging Buffer Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_publication_date", value: "2005/10/04");
  script_set_attribute(attribute:"vuln_publication_date", value: "2005/10/03");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mailenable:mailenable");
  script_end_attributes();

  script_category(ACT_MIXED_ATTACK);
  script_family(english:"Windows");
  script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");
  script_dependencie("smtpserver_detect.nasl", "imap4_banner.nasl");
  script_exclude_keys("imap/false_imap");
  script_require_ports("Services/smtp", 25, "Services/imap", 143);

  exit(0);
}

include("global_settings.inc");
include("imap_func.inc");
include("smtp_func.inc");


port = get_kb_item("Services/imap");
if (!port) port = 143;
if (!get_port_state(port) || get_kb_item("imap/false_imap")) exit(0);


# Make sure the banner is for MailEnable.
banner = get_imap_banner(port:port);
if (!banner || "* OK IMAP4rev1 server ready" >!< banner) exit(0);


# If safe checks are enabled...
if (safe_checks()) {
  # nb: we'll won't do a banner check unless report_paranoia is 
  #     set to paranoid since the hotfix doesn't update the banner.
  if (report_paranoia <= 1) exit(0);

  # Check the version number from the SMTP server's banner.
  smtp_port = get_kb_item("Services/smtp");
  if (!smtp_port) smtp_port = 25;
  if (!get_port_state(smtp_port)) exit(0);
  if (get_kb_item('SMTP/'+smtp_port+'/broken')) exit(0);

  banner = get_smtp_banner(port:smtp_port);
  if (banner =~ "Mail(Enable| Enable SMTP) Service") {
    # nb: Standard Edition seems to format version as "1.71--" (for 1.71),
    #     Professional Edition formats it like "0-1.2-" (for 1.2), and
    #     Enterprise Edition formats it like "0--1.1" (for 1.1).
    ver = eregmatch(
      pattern:"Version: (0-+)?([0-9][^- ]+)-*",
      string:banner,
      icase:TRUE
    );
    if (ver == NULL) {
      exit(1, "cannot determine version of MailEnable's SMTP connector service");
    }
    if (ver[1] == NULL) {
      edition = "Standard";
    }
    else if (ver[1] == "0-") {
      edition = "Professional";
    }
    else if (ver[1] == "0--") {
      edition = "Enterprise";
    }
    if (isnull(edition)) {
      exit(1, "cannot determine edition of MailEnable's SMTP connector service!");
    }
    ver = ver[2];

    if (
      # nb: Professional versions <= 1.6 may be vulnerable.
      (edition == "Professional" && ver =~ "^1\.([0-5]|6$)") ||
      # nb: Enterprise versions <= 1.2 may be vulnerable.
      (edition == "Enterprise" && ver =~ "^1\.(0|1$)")
    ) {
      w = string(
          "***** Nessus has determined the vulnerability exists on the remote\n",
          "***** host simply by looking at the version number of Mailenable\n",
          "***** installed there. Since the Hotfix does not change the version\n",
          "***** number, though, this might be a false positive.\n");
      security_hole(port:port, extra: w);
    }
  }
 exit(0);
}
# Otherwise, try to exploit it.
else {
  # Establish a connection.
  tag = 0;
  soc = open_sock_tcp(port);
  if (!soc) exit(0);

  # Read banner.
  s = recv_line(socket:soc, length:1024);
  if (!strlen(s)) {
    close(soc);
    exit(0);
  }

  # Try to exploit the flaw.
  #
  # nb: a vulnerable server will respond with a bad command and die after a few seconds.
  ++tag;
  c = string("nessus", string(tag), " SELECT ", crap(6800));
  send(socket:soc, data:string(c, "\r\n"));
  close(soc);
  sleep(5);

  # Try to reestablish a connection and read the banner.
  soc2 = open_sock_tcp(port);
  if (soc2) s2 = recv_line(socket:soc2, length:1024);

  # There's a problem if we couldn't establish the connection or read the banner.
  if (!soc2 || !strlen(s2)) {
    security_hole(port);
    exit(0);
  }
  close(soc2);
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/mailenable_imap_logging_overflow.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\mailenable_imap_logging_overflow.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/mailenable_imap_logging_overflow.nasl

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How to Run

Here is how to run the MailEnable IMAP Server W3C Logging Overflow as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Windows plugin family.
On the right side table select MailEnable IMAP Server W3C Logging Overflow plugin ID 19783.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl mailenable_imap_logging_overflow.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a mailenable_imap_logging_overflow.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - mailenable_imap_logging_overflow.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state mailenable_imap_logging_overflow.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

15006

See also:

Similar and related Nessus plugins:

19193 - MailEnable IMAP STATUS Command Remote Overflow
23783 - MailEnable IMAP Server Multiple Buffer Overflow Vulnerabilities (ME-10025)
17974 - MailEnable IMAP / SMTP Multiple Remote Vulnerabilities
59569 - MailEnable ForgottenPassword.aspx Username Parameter XSS
18123 - MailEnable HTTPMail Service Authorization Header Remote Overflow

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file mailenable_imap_logging_overflow.nasl version 1.19. For more plugins, visit the Nessus Plugin Library.

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MailEnable IMAP Server W3C Logging Overflow - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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