Scientific Linux Security Update : systemtap on SL6.x i386/x86_64

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(61097);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2011-2502", "CVE-2011-2503");

  script_name(english:"Scientific Linux Security Update : systemtap on 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:
"SystemTap is an instrumentation system for systems running the Linux
kernel. The system allows developers to write scripts to collect data
on the operation of the system.

It was found that SystemTap did not perform proper module path sanity
checking if a user specified a custom path to the uprobes module, used
when performing user-space probing ('staprun -u'). A local user who is
a member of the stapusr group could use this flaw to bypass intended
module-loading restrictions, allowing them to escalate their
privileges by loading an arbitrary, unsigned module. (CVE-2011-2502)

A race condition flaw was found in the way the staprun utility
performed module loading. A local user who is a member of the stapusr
group could use this flaw to modify a signed module while it is being
loaded, allowing them to escalate their privileges. (CVE-2011-2503)

SystemTap users should upgrade to these updated packages, which
contain backported patches to correct these issues."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1107&L=scientific-linux-errata&T=0&P=2312
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3fc4b19d"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");

  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:"2011/07/25");
  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) 2012-2021 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:"SL6", reference:"systemtap-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-client-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-debuginfo-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-grapher-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-initscript-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-runtime-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-sdt-devel-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-server-1.4-6.el6_1.2")) flag++;
if (rpm_check(release:"SL6", reference:"systemtap-testsuite-1.4-6.el6_1.2")) flag++;


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