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nessusThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.CENTOS_RHSA-2018-1169.NASL
HistoryMay 31, 2018 - 12:00 a.m.

CentOS 7 : corosync (CESA-2018:1169)

2018-05-3100:00:00
This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
22

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.036

Percentile

91.7%

An update for corosync is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The corosync packages provide the Corosync Cluster Engine and C APIs for Red Hat Enterprise Linux cluster software.

Security Fix(es) :

  • corosync: Integer overflow in exec/totemcrypto.c:authenticate_nss_2_3() function (CVE-2018-1084)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Citrix Security Response Team for reporting this issue.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:1169 and 
# CentOS Errata and Security Advisory 2018:1169 respectively.
#

include("compat.inc");

if (description)
{
  script_id(110239);
  script_version("1.6");
  script_cvs_date("Date: 2019/12/31");

  script_cve_id("CVE-2018-1084");
  script_xref(name:"RHSA", value:"2018:1169");
  script_xref(name:"IAVA", value:"2018-A-0127");

  script_name(english:"CentOS 7 : corosync (CESA-2018:1169)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for corosync is now available for Red Hat Enterprise Linux
7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The corosync packages provide the Corosync Cluster Engine and C APIs
for Red Hat Enterprise Linux cluster software.

Security Fix(es) :

* corosync: Integer overflow in
exec/totemcrypto.c:authenticate_nss_2_3() function (CVE-2018-1084)

For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section.

Red Hat would like to thank Citrix Security Response Team for
reporting this issue."
  );
  # https://lists.centos.org/pipermail/centos-announce/2018-May/022855.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?348bc1f7"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected corosync packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-1084");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:corosync");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:corosync-qdevice");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:corosync-qnetd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:corosynclib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:corosynclib-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/31");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"corosync-2.4.3-2.el7_5.1")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"corosync-qdevice-2.4.3-2.el7_5.1")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"corosync-qnetd-2.4.3-2.el7_5.1")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"corosynclib-2.4.3-2.el7_5.1")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"corosynclib-devel-2.4.3-2.el7_5.1")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "corosync / corosync-qdevice / corosync-qnetd / corosynclib / etc");
}
VendorProductVersionCPE
centoscentoscorosyncp-cpe:/a:centos:centos:corosync
centoscentoscorosync-qdevicep-cpe:/a:centos:centos:corosync-qdevice
centoscentoscorosync-qnetdp-cpe:/a:centos:centos:corosync-qnetd
centoscentoscorosynclibp-cpe:/a:centos:centos:corosynclib
centoscentoscorosynclib-develp-cpe:/a:centos:centos:corosynclib-devel
centoscentos7cpe:/o:centos:centos:7

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.036

Percentile

91.7%