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nessusThis script is Copyright (C) 2006-2021 and is owned by Tenable, Inc. or an Affiliate thereof.CENTOS_RHSA-2006-0427.NASL
HistoryJul 05, 2006 - 12:00 a.m.

CentOS 4 : ruby (CESA-2006:0427)

2006-07-0500:00:00
This script is Copyright (C) 2006-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
12

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.049

Percentile

92.9%

Updated ruby packages that fix a denial of service issue are now available.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Ruby is an interpreted scripting language for object-oriented programming.

A bug was found in the way Ruby creates its xmlrpc and http servers.
The servers use a non blocking socket, which enables a remote user to cause a denial of service condition if they are able to transmit a large volume of information from the network server. (CVE-2006-1931)

Users of Ruby should update to these erratum packages, which contain a backported patch and are not vulnerable to this issue.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2006:0427 and 
# CentOS Errata and Security Advisory 2006:0427 respectively.
#

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

if (description)
{
  script_id(21995);
  script_version("1.18");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2006-1931");
  script_bugtraq_id(17645);
  script_xref(name:"RHSA", value:"2006:0427");

  script_name(english:"CentOS 4 : ruby (CESA-2006:0427)");
  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:
"Updated ruby packages that fix a denial of service issue are now
available.

This update has been rated as having moderate security impact by the
Red Hat Security Response Team.

Ruby is an interpreted scripting language for object-oriented
programming.

A bug was found in the way Ruby creates its xmlrpc and http servers.
The servers use a non blocking socket, which enables a remote user to
cause a denial of service condition if they are able to transmit a
large volume of information from the network server. (CVE-2006-1931)

Users of Ruby should update to these erratum packages, which contain a
backported patch and are not vulnerable to this issue."
  );
  # https://lists.centos.org/pipermail/centos-announce/2006-May/012892.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?b3625a04"
  );
  # https://lists.centos.org/pipermail/centos-announce/2006-May/012893.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?30ff2d37"
  );
  # https://lists.centos.org/pipermail/centos-announce/2006-May/012903.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6ec3d4b4"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected ruby packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-mode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-tcltk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/04/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2006/05/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/07/05");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2021 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:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 4.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 && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-4", reference:"irb-1.8.1-7.EL4.3")) flag++;
if (rpm_check(release:"CentOS-4", reference:"ruby-1.8.1-7.EL4.3")) flag++;
if (rpm_check(release:"CentOS-4", reference:"ruby-devel-1.8.1-7.EL4.3")) flag++;
if (rpm_check(release:"CentOS-4", reference:"ruby-docs-1.8.1-7.EL4.3")) flag++;
if (rpm_check(release:"CentOS-4", reference:"ruby-libs-1.8.1-7.EL4.3")) flag++;
if (rpm_check(release:"CentOS-4", reference:"ruby-mode-1.8.1-7.EL4.3")) flag++;
if (rpm_check(release:"CentOS-4", reference:"ruby-tcltk-1.8.1-7.EL4.3")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "irb / ruby / ruby-devel / ruby-docs / ruby-libs / ruby-mode / etc");
}

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.049

Percentile

92.9%