GLSA-201003-01 : sudo: Privilege escalation

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201003-01.
#
# 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('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(44971);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2010-0426", "CVE-2010-0427");
  script_bugtraq_id(38362, 38432);
  script_xref(name:"GLSA", value:"201003-01");

  script_name(english:"GLSA-201003-01 : sudo: 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-201003-01
(sudo: Privilege escalation)

    Multiple vulnerabilities have been discovered in sudo:
    Glenn Waller and neonsignal reported that sudo does not properly
    handle access control of the 'sudoedit' pseudo-command
    (CVE-2010-0426).
    Harald Koenig reported that sudo does not
    properly set supplementary groups when using the 'runas_default' option
    (CVE-2010-0427).
  
Impact :

    A local attacker with privileges to use 'sudoedit' or the privilege to
    execute commands with the 'runas_default' setting enabled could
    leverage these vulnerabilities to execute arbitrary code with elevated
    privileges.
  
Workaround :

    CVE-2010-0426: Revoke all 'sudoedit' privileges, or use the full path
    to sudoedit. CVE-2010-0427: Remove all occurrences of the
    'runas_default' setting."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201003-01"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All sudo users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=app-admin/sudo-1.7.2_p4'"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:sudo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/03/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 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:"app-admin/sudo", unaffected:make_list("ge 1.7.2_p4"), vulnerable:make_list("lt 1.7.2_p4"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "sudo");
}