Juniper Junos CLI Privilege Escalation (JSA10634)

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

include("compat.inc");

if (description)
{
  script_id(76503);
  script_version("1.8");
  script_cvs_date("Date: 2018/07/12 19:01:15");

  script_cve_id("CVE-2014-3816");
  script_bugtraq_id(68541);
  script_xref(name:"JSA", value:"JSA10634");

  script_name(english:"Juniper Junos CLI Privilege Escalation (JSA10634)");
  script_summary(english:"Checks the Junos version and build date.");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the remote Junos device
is affected by a privilege escalation vulnerability. Certain
combinations of Junos OS CLI commands and arguments have been found to
be exploitable in a way that can allow root access to the operating
system by a local user that is authorized to run these commands.");
  script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10634");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper
advisory JSA10634.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  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:"vuln_publication_date", value:"2014/07/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/07/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/07/15");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Junos Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");

  script_dependencies("junos_version.nasl");
  script_require_keys("Host/Juniper/JUNOS/Version", "Host/Juniper/JUNOS/BuildDate");

  exit(0);
}

include("audit.inc");
include("junos.inc");
include("misc_func.inc");

ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');
build_date = get_kb_item_or_exit('Host/Juniper/JUNOS/BuildDate');

# Junos OS 14.1R1 release date
if (compare_build_dates(build_date, '2014-06-26') >= 0)
  audit(AUDIT_INST_VER_NOT_VULN, 'Junos', ver + ' (build date ' + build_date + ')');

fixes = make_array();
fixes['11.4']    = '11.4R12';
fixes['12.1']    = '12.1R11';
fixes['12.1X44'] = '12.1X44-D35';
fixes['12.1X45'] = '12.1X45-D30';
fixes['12.1X46'] = '12.1X46-D20';
fixes['12.1X47'] = '12.1X47-D10';
fixes['12.2']    = '12.2R8-S2';
fixes['12.3']    = '12.3R7';
fixes['13.1']    = '13.1R4-S2';
fixes['13.2']    = '13.2R5';
fixes['13.3']    = '13.3R2-S2';
fixes['14.1']    = '14.1R1';

fix = check_junos(ver:ver, fixes:fixes, exit_on_fail:TRUE);

if (report_verbosity > 0)
{
  report = get_report(ver:ver, fix:fix);
  security_hole(port:0, extra:report);
}
else security_hole(0);