The version of LibreOffice installed on the remote macOS or Mac OS X host is prior to 5.1.4. It is, therefore, affected by a use-after-free error due to improper handling of the character style index when parsing RTF files. An unauthenticated, remote attacker can exploit this, by convincing a user to open a specially crafted RTF file, to execute arbitrary code.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(91975);
script_version("1.9");
script_cvs_date("Date: 2019/11/14");
script_cve_id("CVE-2016-4324");
script_bugtraq_id(91499);
script_name(english:"LibreOffice < 5.1.4 RTF Character Style Index RCE (macOS)");
script_summary(english:"Checks the version of LibreOffice.");
script_set_attribute(attribute:"synopsis", value:
"An application installed on the remote host is affected by a remote
code execution vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of LibreOffice installed on the remote macOS or Mac OS X
host is prior to 5.1.4. It is, therefore, affected by a use-after-free
error due to improper handling of the character style index when
parsing RTF files. An unauthenticated, remote attacker can exploit
this, by convincing a user to open a specially crafted RTF file, to
execute arbitrary code.
Note that Nessus has not tested for this issue but has instead relied
only on the application's self-reported version number.");
# https://www.libreoffice.org/about-us/security/advisories/cve-2016-4324/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?13884491");
# http://blog.talosintel.com/2016/06/vulnerability-spotlight-libreoffice-rtf.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a9f01c39");
# http://www.talosintelligence.com/reports/TALOS-2016-0126/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?dc117572");
script_set_attribute(attribute:"solution", value:
"Upgrade to LibreOffice version 5.1.4 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-4324");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/06/27");
script_set_attribute(attribute:"patch_publication_date", value:"2016/06/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/08");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:libreoffice:libreoffice");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MacOS X Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("macosx_libreoffice_installed.nasl");
script_require_keys("installed_sw/LibreOffice", "Host/MacOSX/Version");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("install_func.inc");
app_name = "LibreOffice";
get_kb_item_or_exit("Host/MacOSX/Version");
install = get_single_install(app_name:app_name, exit_if_unknown_ver:TRUE);
version = install['version'];
path = install['path'];
if (
# < 5.x
version =~ "^[0-4]($|[^0-9])" ||
# 5.0 < 5.1
version =~ "^5\.0($|[^0-9])" ||
# 5.1 < 5.1.4
version =~ "^5\.1($|\.[0-3])($|[^0-9])"
)
{
report =
'\n Path : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 5.1.4' +
'\n';
security_report_v4(port:0, severity:SECURITY_WARNING, extra:report);
exit(0);
}
else audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);
Vendor | Product | Version | CPE |
---|---|---|---|
libreoffice | libreoffice | cpe:/a:libreoffice:libreoffice |