Debian DSA-2061-1 : samba - memory corruption - Nessus

High Plugin ID: 47103

This page contains detailed information about the Debian DSA-2061-1 : samba - 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: 47103
Name: Debian DSA-2061-1 : samba - memory corruption
Filename: debian_DSA-2061.nasl
Vulnerability Published: N/A
This Plugin Published: 2010-06-21
Last Modification Time: 2021-01-04
Plugin Version: 1.13
Plugin Type: local
Plugin Family: Debian Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/Debian/dpkg-l, Host/Debian/release, Host/local_checks_enabled

Vulnerability Information

Severity: High
Vulnerability Published: N/A
Patch Published: 2010-06-16
CVE [?]: CVE-2010-2063
CPE [?]: cpe:/o:debian:debian_linux:5.0, p-cpe:/a:debian:debian_linux:samba

Synopsis

The remote Debian host is missing a security-related update.

Description

Jun Mao discovered that Samba, an implementation of the SMB/CIFS protocol for Unix systems, is not properly handling certain offset values when processing chained SMB1 packets. This enables an unauthenticated attacker to write to an arbitrary memory location resulting in the possibility to execute arbitrary code with root privileges or to perform denial of service attacks by crashing the samba daemon.

Solution

Upgrade the samba packages.

For the stable distribution (lenny), this problem has been fixed in version 3.2.5-4lenny12.

This problem does not affect the versions in the testing (squeeze) and unstable (sid) distribution.

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 Debian DSA-2061-1 : samba - 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

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2061. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(47103);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2010-2063");
  script_bugtraq_id(40884);
  script_xref(name:"DSA", value:"2061");

  script_name(english:"Debian DSA-2061-1 : samba - memory corruption");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Jun Mao discovered that Samba, an implementation of the SMB/CIFS
protocol for Unix systems, is not properly handling certain offset
values when processing chained SMB1 packets. This enables an
unauthenticated attacker to write to an arbitrary memory location
resulting in the possibility to execute arbitrary code with root
privileges or to perform denial of service attacks by crashing the
samba daemon."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2010/dsa-2061"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the samba packages.

For the stable distribution (lenny), this problem has been fixed in
version 3.2.5-4lenny12.

This problem does not affect the versions in the testing (squeeze) and
unstable (sid) distribution."
  );
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/06/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/06/21");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"5.0", prefix:"libpam-smbpass", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"libsmbclient", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"libsmbclient-dev", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"libwbclient0", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"samba", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"samba-common", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"samba-dbg", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"samba-doc", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"samba-doc-pdf", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"samba-tools", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"smbclient", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"smbfs", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"swat", reference:"3.2.5-4lenny12")) flag++;
if (deb_check(release:"5.0", prefix:"winbind", reference:"3.2.5-4lenny12")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_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/debian_DSA-2061.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DSA-2061.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/debian_DSA-2061.nasl

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How to Run

Here is how to run the Debian DSA-2061-1 : samba - 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 Debian Local Security Checks plugin family.
On the right side table select Debian DSA-2061-1 : samba - memory corruption plugin ID 47103.
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 debian_DSA-2061.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a debian_DSA-2061.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - debian_DSA-2061.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 debian_DSA-2061.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

40884

DSA | Debian Security Advisory:

2061

See also:

Similar and related Nessus plugins:

47101 - CentOS 3 / 4 / 5 : samba / samba3x (CESA-2010:0488)
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)
47036 - Samba 3.x < 3.3.13 SMB1 Packet Chaining Memory Corruption
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)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DSA-2061.nasl version 1.13. For more plugins, visit the Nessus Plugin Library.

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Debian DSA-2061-1 : samba - 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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