Scientific Linux Security Update : setroubleshoot on SL5.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(60408);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2007-5495", "CVE-2007-5496");

  script_name(english:"Scientific Linux Security Update : setroubleshoot on SL5.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:
"A flaw was found in the way sealert wrote diagnostic messages to a
temporary file. A local unprivileged user could perform a symbolic
link attack, and cause arbitrary files, writable by other users, to be
overwritten when a victim runs sealert. (CVE-2007-5495)

A flaw was found in the way sealert displayed records from the
setroubleshoot database as unescaped HTML. An local unprivileged
attacker could cause AVC denial events with carefully crafted process
or file names, injecting arbitrary HTML tags into the logs, which
could be used as a scripting attack, or to confuse the user running
sealert. (CVE-2007-5496)

Additionally, the following bugs have been fixed in these update
packages :

  - in certain situations, the sealert process used
    excessive CPU. These alerts are now capped at a maximum
    of 30, D-Bus is used instead of polling, threads causing
    excessive wake-up have been removed, and more robust
    exception-handling has been added.

  - different combinations of the sealert '-a', '-l', '-H',
    and '-v' options did not work as documented.

  - the SETroubleShoot browser did not allow multiple
    entries to be deleted.

  - the SETroubleShoot browser did not display statements
    that displayed whether SELinux was using Enforcing or
    Permissive mode, particularly when warning about SELinux
    preventions.

  - in certain cases, the SETroubleShoot browser gave
    incorrect instructions regarding paths, and would not
    display the full paths to files.

  - adding an email recipient to the recipients option from
    the /etc/setroubleshoot/setroubleshoot.cfg file and then
    generating an SELinux denial caused a traceback error.
    The recipients option has been removed; email addresses
    are now managed through the SETroubleShoot browser by
    navigating to File -> Edit Email Alert List, or by
    editing the
    /var/lib/setroubleshoot/email_alert_recipients file.

  - the setroubleshoot browser incorrectly displayed a
    period between the httpd_sys_content_t context and the
    directory path.

  - on the PowerPC architecture, The get_credentials()
    function in access_control.py would generate an
    exception when it called the socket.getsockopt()
    function.

  - The code which handles path information has been
    completely rewritten so that assumptions on path
    information which were misleading are no longer made. If
    the path information is not present, it will be
    presented as '<Unknown>'.

  - setroubleshoot had problems with non-English locales
    under certain circumstances, possibly causing a python
    traceback, an sealert window pop-up containing an error,
    a 'RuntimeError: maximum recursion depth exceeded' error
    after a traceback, or a 'UnicodeEncodeError' after a
    traceback.

  - sealert ran even when SELinux was disabled, causing
    'attempt to open server connection failed' errors.
    Sealert now checks whether SELinux is enabled or
    disabled.

  - the database setroubleshoot maintains was
    world-readable. The setroubleshoot database is now mode
    600, and is owned by the root user and group.

  - setroubleshoot did not validate requests to set AVC
    filtering options for users. In these updated packages,
    checks ensure that requests originate from the filter
    owner.

  - the previous setroubleshoot packages required a number
    of GNOME packages and libraries. setroubleshoot has
    therefore been split into 2 packages: setroubleshoot and
    setroubleshoot-server.

  - a bug in decoding the audit field caused an 'Input is
    not proper UTF-8, indicate encoding!' error message. The
    decoding code has been rewritten.

  - a file name mismatch in the setroubleshoot init script
    would cause a failure to shut down."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind0805&L=scientific-linux-errata&T=0&P=2172
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ddd3a9fc"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected setroubleshoot, setroubleshoot-plugins and / or
setroubleshoot-server packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_cwe_id(59, 79);

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/05/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/05/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"SL5", reference:"setroubleshoot-2.0.5-3.el5")) flag++;
if (rpm_check(release:"SL5", reference:"setroubleshoot-plugins-2.0.4-2.el5")) flag++;
if (rpm_check(release:"SL5", reference:"setroubleshoot-server-2.0.5-3.el5")) 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");