Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption - Nessus

High Plugin ID: 47036

This page contains detailed information about the Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption 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: 47036
Name: Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption
Filename: samba_3_3_13.nasl
Vulnerability Published: 2010-06-16
This Plugin Published: 2010-06-17
Last Modification Time: 2018-11-15
Plugin Version: 1.14
Plugin Type: remote
Plugin Family: Misc.
Dependencies: smb_nativelanman.nasl
Required KB Items [?]: Settings/ParanoidReport, SMB/NativeLanManager, SMB/samba

Vulnerability Information

Severity: High
Vulnerability Published: 2010-06-16
Patch Published: 2010-06-16
CVE [?]: CVE-2010-2063
CPE [?]: cpe:/a:samba:samba

Synopsis

The remote service is affected by a memory corruption vulnerability.

Description

According to its banner, the version of Samba running on the remote host is a version of 3.x before 3.3.13. Such versions are affected by a memory corruption vulnerability when handling specially crafted SMB1 packets.

By exploiting this flaw, a remote, unauthenticated attacker could crash the affected service or potentially execute arbitrary code subject to the privileges of the user running the affected application.

Solution

Upgrade to Samba 3.3.13 or later.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
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 Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption vulnerability:

Metasploit: exploit/linux/samba/chain_reply
[Samba chain_reply Memory Corruption (Linux x86)]
Exploit-DB: exploits/linux_x86/remote/16860.rb
[EDB-16860: Samba 3.3.12 (Linux x86) - 'chain_reply' Memory Corruption (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(47036);
  script_version("1.14");
  script_cvs_date("Date: 2018/11/15 20:50:23");

  script_cve_id("CVE-2010-2063");
  script_bugtraq_id(40884);
  script_xref(name:"Secunia", value:"40145");

  script_name(english:"Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption");
  script_summary(english:"Checks version of Samba");

  script_set_attribute(attribute:"synopsis", value:"The remote service is affected by a memory corruption vulnerability.");

  script_set_attribute(attribute:"description", value:
"According to its banner, the version of Samba running on the remote
host is a version of 3.x before 3.3.13. Such versions are affected by
a memory corruption vulnerability when handling specially crafted SMB1
packets.

By exploiting this flaw, a remote, unauthenticated attacker could
crash the affected service or potentially execute arbitrary code
subject to the privileges of the user running the affected
application.");

  script_set_attribute(attribute:"see_also", value:"https://www.samba.org/samba/security/CVE-2010-2063.html");
  script_set_attribute(attribute:"see_also", value:"https://www.samba.org/samba/history/security.html");
  script_set_attribute(attribute:"solution", value:"Upgrade to Samba 3.3.13 or later.");
  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:'Samba chain_reply Memory Corruption (Linux x86)');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/06/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/06/17");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:samba:samba");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");

  script_dependencies("smb_nativelanman.nasl");
  script_require_keys("SMB/NativeLanManager", "SMB/samba", "Settings/ParanoidReport");

  exit(0);
}

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

port = get_kb_item("SMB/transport");

lanman = get_kb_item("SMB/NativeLanManager");
if (isnull(lanman)) exit(1, "The 'SMB/NativeLanManager' KB item is missing.");
if ("Samba " >!< lanman) exit(1, "The SMB service listening on port "+port+" is not running Samba.");

version = lanman - 'Samba ';
ver = split(version, sep:'.', keep:FALSE);

for (i=0; i<max_index(ver); i++)
  ver[i] = int(ver[i]);

if (
  ver[0] == 3 &&
  (
    ver[1] < 3 ||
    (ver[1] == 3 && ver[2] < 13)
  )
)
{
  if (report_verbosity > 1)
  {
    report =
      '\n' +
      'The remote Samba server appears to be :\n' +
      '\n' +
      '  ' + lanman + '\n';
      security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else exit(0, 'Samba version ' + lanman + ' is listening on port '+port+' and not affected.');

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/samba_3_3_13.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\samba_3_3_13.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/samba_3_3_13.nasl

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How to Run

Here is how to run the Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption 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 Misc. plugin family.
On the right side table select Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption plugin ID 47036.
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 samba_3_3_13.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a samba_3_3_13.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - samba_3_3_13.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_3_3_13.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

40884

Secunia Advisory:

40145

See also:

Similar and related Nessus plugins:

47101 - CentOS 3 / 4 / 5 : samba / samba3x (CESA-2010:0488)
47103 - Debian DSA-2061-1 : samba - memory corruption
59675 - GLSA-201206-22 : Samba: Multiple vulnerabilities
48424 - Mac OS X Multiple Vulnerabilities (Security Update 2010-005)
47042 - Mandriva Linux Security Advisory : samba (MDVSA-2010:119)
68051 - Oracle Linux 3 / 4 / 5 : samba / samba3x (ELSA-2010-0488)
47034 - RHEL 3 / 4 / 5 : samba and samba3x (RHSA-2010:0488)
60804 - Scientific Linux Security Update : samba and samba3x on SL5.x i386/x86_64
60805 - Scientific Linux Security Update : samba on SL3.x, SL4.x i386/x86_64
47047 - Slackware 10.0 / 10.1 / 10.2 / 11.0 / 12.0 / 12.1 / 12.2 / 13.0 : samba (SSA:2010-169-01)
47570 - openSUSE Security Update : cifs-mount (openSUSE-SU-2010:0346-1)
47572 - openSUSE Security Update : cifs-mount (openSUSE-SU-2010:0346-1)
50894 - SuSE 11 Security Update : (SAT Patch Number 2544)
47568 - SuSE9 Security Update : Samba (YOU Patch Number 12622)
49835 - SuSE 10 Security Update : Samba (ZYPP Patch Number 7072)
47035 - Ubuntu 6.06 LTS / 8.04 LTS / 9.04 : samba vulnerability (USN-951-1)
49085 - VMSA-2010-0013 : VMware ESX third-party updates for Service Console
89741 - VMware ESX Multiple Vulnerabilities (VMSA-2010-0013) (remote check)
106974 - Apple TV < 11.2.6 Telugu Character Handling Remote Memory Corruption Vulnerability
132248 - RancherOS < 1.0.3 Local Memory Corruption

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file samba_3_3_13.nasl version 1.14. For more plugins, visit the Nessus Plugin Library.

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Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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