Vulnerabilities > CVE-2011-3977 - Local Privilege Escalation vulnerability in NX Server 'nxconfigure.sh'

047910
CVSS 7.2 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
low complexity
nomachine
nessus

Summary

Unspecified vulnerability in nxconfigure.sh in NoMachine NX Node 3.x before 3.5.0-4 and NX Server 3.x before 3.5.0-5 allows local users to read arbitrary files via unknown vectors.

Nessus

NASL familyGentoo Local Security Checks
NASL idGENTOO_GLSA-201201-07.NASL
descriptionThe remote host is affected by the vulnerability described in GLSA-201201-07 (NX Server Free Edition, NX Node: Privilege escalation) NX Server Free Edition and NX Node use nxconfigure.sh, a setuid script containing an unspecified vulnerability. Impact : A local attacker could gain escalated privileges. Workaround : There is no known workaround at this time.
last seen2020-06-01
modified2020-06-02
plugin id57649
published2012-01-24
reporterThis script is Copyright (C) 2012-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/57649
titleGLSA-201201-07 : NX Server Free Edition, NX Node: Privilege escalation
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201201-07.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(57649);
  script_version("1.7");
  script_cvs_date("Date: 2018/07/11 17:09:26");

  script_cve_id("CVE-2011-3977");
  script_bugtraq_id(49720);
  script_xref(name:"GLSA", value:"201201-07");

  script_name(english:"GLSA-201201-07 : NX Server Free Edition, NX Node: Privilege escalation");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201201-07
(NX Server Free Edition, NX Node: Privilege escalation)

    NX Server Free Edition and NX Node use nxconfigure.sh, a setuid script
      containing an unspecified vulnerability.
  
Impact :

    A local attacker could gain escalated privileges.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201201-07"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All NX Server Free Edition users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose
      '>=net-misc/nxserver-freeedition-3.5.0.5'
    All NX Node users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=net-misc/nxnode-3.5.0.4'
    NOTE: This is a legacy GLSA. Updates for all affected architectures are
      available since August 23, 2011. It is likely that your system is already
      no longer affected by this issue."
  );
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:nxnode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:nxserver-freeedition");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/24");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"net-misc/nxserver-freeedition", unaffected:make_list("ge 3.5.0.5"), vulnerable:make_list("lt 3.5.0.5"))) flag++;
if (qpkg_check(package:"net-misc/nxnode", unaffected:make_list("ge 3.5.0.4"), vulnerable:make_list("lt 3.5.0.4"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "NX Server Free Edition / NX Node");
}