Samba < 2.2.8 Multiple Vulnerabilities - Nessus

Critical   Plugin ID: 11398

This page contains detailed information about the Samba < 2.2.8 Multiple Vulnerabilities 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

ID: 11398
Name: Samba < 2.2.8 Multiple Vulnerabilities
Filename: samba_frags_overflow.nasl
Vulnerability Published: 2003-03-15
This Plugin Published: 2003-03-15
Last Modification Time: 2018-07-27
Plugin Version: 1.21
Plugin Type: remote
Plugin Family: Gain a shell remotely
Dependencies: smb_nativelanman.nasl
Required KB Items [?]: SMB/NativeLanManager

Vulnerability Information

Severity: Critical
Vulnerability Published: 2003-03-15
Patch Published: N/A
CVE [?]: CVE-2003-0085, CVE-2003-0086
CPE [?]: cpe:/a:samba:samba

Synopsis

Arbitrary code may be run on the remote server.

Description

The remote Samba server, according to its version number, is vulnerable to a remote buffer overflow when receiving specially crafted SMB fragment packets.

An attacker needs to be able to access at least one share to exploit this flaw.

In addition, it is reported that Samba contains a flaw related to the handling of .reg files that may allow a local user to overwrite arbitrary file.

Solution

Upgrade to Samba 2.2.8.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Exploit-DB, Immunity Canvas, Core Impact)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Samba < 2.2.8 Multiple Vulnerabilities vulnerability:

  1. Exploit-DB: exploits/linux/remote/9936.rb
    [EDB-9936: Samba 2.2.x - 'nttrans' Remote Overflow (Metasploit)]
  2. Exploit-DB: exploits/linux/remote/16321.rb
    [EDB-16321: Samba 2.2.2 < 2.2.6 - 'nttrans' Remote Buffer Overflow (Metasploit) (1)]
  3. Immunity Canvas: CANVAS

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:C/I:C/A:C/E:F/RL:OF/RC:C
CVSS Base Score:10.0 (High)
Impact Subscore:10.0
Exploitability Subscore:10.0
CVSS Temporal Score:8.3 (High)
CVSS Environmental Score:NA (None)
Modified Impact Subscore:NA
Overall CVSS Score:8.3 (High)

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Plugin Source

This is the samba_frags_overflow.nasl nessus plugin source code. This script is Copyright (C) 2003-2018 Tenable Network Security, Inc. 

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

# Ref: 
# From: Wichert Akkerman <[email protected]>
# Subject: [SECURITY] [DSA-262-1] samba security fix
# Resent-Message-ID: <VvQa6C.A.oDH.Ng1c-@murphy>
# To: [email protected]
#

include("compat.inc");

if(description)
{
 script_id(11398);
 script_version ("1.21");

 script_cve_id("CVE-2003-0085", "CVE-2003-0086");
 script_bugtraq_id(7106, 7107);
 script_xref(name:"RHSA", value:"2003:095-03");
 script_xref(name:"SuSE", value:"SUSE-SA:2003:016");

 script_name(english: "Samba < 2.2.8 Multiple Vulnerabilities");
 
 script_set_attribute(attribute:"synopsis", value:
"Arbitrary code may be run on the remote server." );
 script_set_attribute(attribute:"description", value:
"The remote Samba server, according to its version number, is vulnerable
to a remote buffer overflow when receiving specially crafted SMB 
fragment packets.

An attacker needs to be able to access at least one share to exploit 
this flaw.

In addition, it is reported that Samba contains a flaw
related to the handling of .reg files that may allow
a local user to overwrite arbitrary file." );
 script_set_attribute(attribute:"solution", value:
"Upgrade to Samba 2.2.8." );
  script_set_cvss_base_vector("CVSS2#AV:N/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:"exploit_framework_canvas", value:"true");
 script_set_attribute(attribute:"canvas_package", value:'CANVAS');

 script_set_attribute(attribute:"plugin_publication_date", value: "2003/03/15");
 script_set_attribute(attribute:"vuln_publication_date", value: "2003/03/15");
 script_cvs_date("Date: 2018/07/27 18:38:14");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:samba:samba");
script_end_attributes();

 script_summary(english: "checks samba version");
 script_category(ACT_GATHER_INFO);
 script_copyright(english:"This script is Copyright (C) 2003-2018 Tenable Network Security, Inc.");
 script_family(english: "Gain a shell remotely");
 script_dependencie("smb_nativelanman.nasl");
 script_require_keys("SMB/NativeLanManager");
 exit(0);
}

#
# The script code starts here
#

lanman = get_kb_item("SMB/NativeLanManager");
if("Samba" >< lanman)
{
 if(ereg(pattern:"Samba 2\.(0\..*|2\.[0-7][^0-9].*)", string:lanman))security_hole(139);
}

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

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

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How to Run

Here is how to run the Samba < 2.2.8 Multiple Vulnerabilities as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

  1. Click to start a New Scan.
  2. Select Advanced Scan.
  3. Navigate to the Plugins tab.
  4. On the top right corner click to Disable All plugins.
  5. On the left side table select Gain a shell remotely plugin family.
  6. On the right side table select Samba < 2.2.8 Multiple Vulnerabilities plugin ID 11398.
  7. Specify the target on the Settings tab and click to Save the scan.
  8. 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 samba_frags_overflow.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

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References

BID | SecurityFocus Bugtraq ID: RHSA | Red Hat Security Advisory: SuSE Security Advisory:
  • SUSE-SA:2003:016
See also: Similar and related Nessus plugins:
  • 15099 - Debian DSA-262-1 : samba - remote exploit
  • 14016 - Mandrake Linux Security Advisory : samba (MDKSA-2003:032)
  • 12379 - RHEL 2.1 : samba (RHSA-2003:096)
  • 11442 - Samba TNG < 0.3.1 Multiple Remote Vulnerabilities
  • 11523 - Samba < 2.2.8a / 3.0.0 Multiple Remote Overflows
  • 11168 - Samba Encrypted Password String Conversion Decryption Overflow
  • 122056 - Samba < 2.2.8a Remote Code Execution Vulnerability
  • 25217 - Samba < 3.0.25 Multiple Vulnerabilities
  • 29253 - Samba < 3.0.28 send_mailslot Function Remote Buffer Overflow
  • 17720 - Samba SWAT 3.0.2 - 3.0.4 HTTP Basic Auth base64 Buffer Overflow
  • 47036 - Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption
  • 55733 - Samba 3.x < 3.3.16 / 3.4.14 / 3.5.10 Multiple Vulnerabilities
  • 82580 - Samba 3.0.0 'SamrChangePassword' RCE
  • 69276 - Samba 3.x < 3.5.22 / 3.6.x < 3.6.17 / 4.0.x < 4.0.8 read_nttrans_ea_lis DoS
  • 132023 - Samba 4.x < 4.9.17 / 4.10.x < 4.10.11 / 4.11.x < 4.11.3 Multiple Vulnerabilities
  • 133210 - Samba 4.x < 4.9.18 / 4.10.x < 4.10.12 / 4.11.x < 4.11.5 Multiple Vulnerabilities
  • 81485 - Samba 3.5.x < 3.5.22 / 3.6.x < 3.6.25 / 4.0.x < 4.0.25 / 4.1.x < 4.1.17 TALLOC_FREE() RCE
  • 138223 - Samba 4.x < 4.10.17 / 4.11.x < 4.11.11 / 4.12.x < 4.12.4 Multiple Vulnerabilities
  • 142419 - Samba 3.6.x < 4.11.15 / 4.12.x < 4.12.9 / 4.13.x < 4.13.1 Multiple Vulnerabilities
  • 149699 - Samba 4.12.x < 4.12.14 / 4.13.x < 4.13.7 / 4.14.x < 4.14.2 Multiple DoS
  • 149350 - Samba 3.6.x < 4.12.15 / 4.13.x < 4.13.8 / 4.14.x < 4.14.4 Unauthorized File Access
  • 155620 - Samba 4.13.x < 4.13.14 / 4.14.x < 4.14.10 / 4.15.x < 4.15.2 Multiple Vulnerabilities
  • 157360 - Samba 4.13.x < 4.13.17 / 4.14.x < 4.14.12 / 4.15.x < 4.15.5 Multiple Vulnerabilities
  • 90508 - Samba 3.x < 4.2.10 / 4.2.x < 4.2.10 / 4.3.x < 4.3.7 / 4.4.x < 4.4.1 Multiple Vulnerabilities (Badlock)
  • 100388 - Samba 3.5.x < 4.4 / 4.4.x < 4.4.14 / 4.5.x < 4.5.10 / 4.6.x < 4.6.4 Shared Library RCE
  • 103535 - Samba 4.4.x < 4.4.16 / 4.5.x < 4.5.14 / 4.6.x < 4.6.8 Multiple Vulnerabilities
  • 108378 - Samba 4.5.x < 4.5.16 / 4.6.x < 4.6.14 / 4.7.x < 4.7.6 Multiple Vulnerabilities
  • 90509 - Samba Badlock Vulnerability
  • 130628 - Samba 4.5.x / 4.6.x / 4.7.x / 4.8.x / 4.9.x < 4.9.15 / 4.10.x < 4.10.10 / 4.11.x < 4.11.2 Password Complexity Check Bypass (CVE-2019-14833)
  • 130629 - Samba 4.x < 4.9.15 / 4.10.x < 4.10.10 AD DC LDAP Server Denial of Service (CVE-2019-14847)
  • 25216 - Samba NDR MS-RPC Request Heap-Based Remote Buffer Overflow
  • 58662 - Samba 3.x < 3.6.4 / 3.5.14 / 3.4.16 RPC Multiple Buffer Overflows
  • 44406 - Samba Symlink Traversal Arbitrary File Access (unsafe check)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file samba_frags_overflow.nasl version 1.21. For more plugins, visit the Nessus Plugin Library.

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