Scientific Linux Security Update : sudo on SL5.x, SL6.x i386/x86_64

2012-08-01T00:00:00
ID SL_20120716_SUDO_ON_SL5_X.NASL
Type nessus
Reporter Tenable
Modified 2018-12-31T00:00:00

Description

The sudo (superuser do) utility allows system administrators to give certain users the ability to run commands as root.

A flaw was found in the way the network matching code in sudo handled multiple IP networks listed in user specification configuration directives. A user, who is authorized to run commands with sudo on specific hosts, could use this flaw to bypass intended restrictions and run those commands on hosts not matched by any of the network specifications. (CVE-2012-2337)

All users of sudo are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(61363);
  script_version("1.2");
  script_cvs_date("Date: 2018/12/31 11:35:01");

  script_cve_id("CVE-2012-2337");

  script_name(english:"Scientific Linux Security Update : sudo on SL5.x, SL6.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The sudo (superuser do) utility allows system administrators to give
certain users the ability to run commands as root.

A flaw was found in the way the network matching code in sudo handled
multiple IP networks listed in user specification configuration
directives. A user, who is authorized to run commands with sudo on
specific hosts, could use this flaw to bypass intended restrictions
and run those commands on hosts not matched by any of the network
specifications. (CVE-2012-2337)

All users of sudo are advised to upgrade to this updated package,
which contains a backported patch to correct this issue."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1207&L=scientific-linux-errata&T=0&P=4508
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ff482934"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected sudo and / or sudo-debuginfo packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/07/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL5", reference:"sudo-1.7.2p1-14.el5_8")) flag++;
if (rpm_check(release:"SL5", reference:"sudo-debuginfo-1.7.2p1-14.el5_8")) flag++;

if (rpm_check(release:"SL6", reference:"sudo-1.7.4p5-12.el6_3")) flag++;
if (rpm_check(release:"SL6", reference:"sudo-debuginfo-1.7.4p5-12.el6_3")) flag++;


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