RHEL 6 : rsyslog (RHSA-2011:1247)

2011-09-02T00:00:00
ID REDHAT-RHSA-2011-1247.NASL
Type nessus
Reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-03-02T00:00:00

Description

Updated rsyslog packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The rsyslog packages provide an enhanced, multi-threaded syslog daemon that supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine grained output format control.

A two byte buffer overflow flaw was found in the rsyslog daemon

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2011:1247. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(56047);
  script_version ("1.17");
  script_cvs_date("Date: 2019/10/25 13:36:16");

  script_cve_id("CVE-2011-3200");
  script_xref(name:"RHSA", value:"2011:1247");

  script_name(english:"RHEL 6 : rsyslog (RHSA-2011:1247)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated rsyslog packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

The rsyslog packages provide an enhanced, multi-threaded syslog daemon
that supports MySQL, syslog/TCP, RFC 3195, permitted sender lists,
filtering on any message part, and fine grained output format control.

A two byte buffer overflow flaw was found in the rsyslog daemon's
parseLegacySyslogMsg function. An attacker able to submit log messages
to rsyslogd could use this flaw to crash the daemon. (CVE-2011-3200)

All rsyslog users should upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing
this update, the rsyslog daemon will be restarted automatically."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2011-3200"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2011:1247"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rsyslog");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rsyslog-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rsyslog-gnutls");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rsyslog-gssapi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rsyslog-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rsyslog-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rsyslog-relp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/09/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/09/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);

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 ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2011:1247";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"rsyslog-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"rsyslog-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"rsyslog-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"rsyslog-debuginfo-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"rsyslog-debuginfo-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"rsyslog-debuginfo-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"rsyslog-gnutls-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"rsyslog-gnutls-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"rsyslog-gnutls-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"rsyslog-gssapi-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"rsyslog-gssapi-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"rsyslog-gssapi-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"rsyslog-mysql-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"rsyslog-mysql-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"rsyslog-mysql-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"rsyslog-pgsql-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"rsyslog-pgsql-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"rsyslog-pgsql-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"i686", reference:"rsyslog-relp-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"rsyslog-relp-4.6.2-3.el6_1.2")) flag++;

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"rsyslog-relp-4.6.2-3.el6_1.2")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rsyslog / rsyslog-debuginfo / rsyslog-gnutls / rsyslog-gssapi / etc");
  }
}