Debian DSA-200-1 : samba - remote exploit - Nessus

Critical   Plugin ID: 15037

---

This page contains detailed information about the Debian DSA-200-1 : samba - remote exploit Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Plugin Overview

---

ID: 15037
Name: Debian DSA-200-1 : samba - remote exploit
Filename: debian_DSA-200.nasl
Vulnerability Published: N/A
This Plugin Published: 2004-09-29
Last Modification Time: 2021-01-04
Plugin Version: 1.17
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: Critical
Vulnerability Published: N/A
Patch Published: 2002-11-22
CVE [?]: CVE-2002-1318
CPE [?]: cpe:/o:debian:debian_linux:3.0, p-cpe:/a:debian:debian_linux:samba

Synopsis

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

Description

Steve Langasek found an exploitable bug in the password handling code in samba: when converting from DOS code-page to little endian UCS2 unicode a buffer length was not checked and a buffer could be overflowed. There is no known exploit for this, but an upgrade is strongly recommended.

Solution

This problem has been fixed in version 2.2.3a-12 of the Debian samba packages and upstream version 2.2.7.

Public Exploits

---

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Debian DSA-200-1 : samba - remote exploit vulnerability:

1. Metasploit: exploit/multi/samba/nttrans
   [Samba 2.2.2 - 2.2.6 nttrans Buffer Overflow]

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.

Risk Information

---

CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:C/I:C/A:C

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

Go back to menu.

Plugin Source

---

This is the debian_DSA-200.nasl nessus plugin source code. This script is Copyright (C) 2004-2021 Tenable Network Security, Inc.

#%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-200. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(15037);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2002-1318");
  script_xref(name:"DSA", value:"200");

  script_name(english:"Debian DSA-200-1 : samba - remote exploit");
  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:
"Steve Langasek found an exploitable bug in the password handling code
in samba: when converting from DOS code-page to little endian UCS2
unicode a buffer length was not checked and a buffer could be
overflowed. There is no known exploit for this, but an upgrade is
strongly recommended."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2002/dsa-200"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"This problem has been fixed in version 2.2.3a-12 of the Debian samba
packages and upstream version 2.2.7."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A: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 2.2.2 - 2.2.6 nttrans Buffer Overflow');
  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:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2002/11/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2021 Tenable Network Security, Inc.");
  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:"3.0", prefix:"libpam-smbpass", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"libsmbclient", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"libsmbclient-dev", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"samba", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"samba-common", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"samba-doc", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"smbclient", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"smbfs", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"swat", reference:"2.2.3a-12")) flag++;
if (deb_check(release:"3.0", prefix:"winbind", reference:"2.2.3a-12")) 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-200.nasl
• Windows:
  C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DSA-200.nasl
• Mac OS X:
  /Library/Nessus/run/lib/nessus/plugins/debian_DSA-200.nasl

Go back to menu.

How to Run

---

Here is how to run the Debian DSA-200-1 : samba - remote exploit 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 Debian Local Security Checks plugin family.
6. On the right side table select Debian DSA-200-1 : samba - remote exploit plugin ID 15037.
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 debian_DSA-200.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a debian_DSA-200.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-200.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-200.nasl -t <IP/HOST>

Go back to menu.

References

---

DSA | Debian Security Advisory:

• 200

See also:

• https://www.tenable.com/plugins/nessus/15037
• http://www.debian.org/security/2002/dsa-200
• https://vulners.com/nessus/DEBIAN_DSA-200.NASL

Similar and related Nessus plugins:

• 13979 - Mandrake Linux Security Advisory : samba (MDKSA-2002:081)
• 11168 - Samba Encrypted Password String Conversion Decryption Overflow

Version

---

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DSA-200.nasl version 1.17. For more plugins, visit the Nessus Plugin Library.

Go back to menu.