Updated ruby packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 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.
Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks.
A flaw was found in Ruby’s SSL client’s hostname identity check when handling certificates that contain hostnames with NULL bytes. An attacker could potentially exploit this flaw to conduct man-in-the-middle attacks to spoof SSL servers. Note that to exploit this issue, an attacker would need to obtain a carefully-crafted certificate signed by an authority that the client trusts.
(CVE-2013-4073)
All users of Ruby are advised to upgrade to these updated packages, which contain backported patches to resolve 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-2013:1090 and
# CentOS Errata and Security Advisory 2013:1090 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(68941);
script_version("1.14");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2013-4073");
script_bugtraq_id(60843);
script_xref(name:"RHSA", value:"2013:1090");
script_name(english:"CentOS 5 / 6 : ruby (CESA-2013:1090)");
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 one security issue are now available
for Red Hat Enterprise Linux 5 and 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.
Ruby is an extensible, interpreted, object-oriented, scripting
language. It has features to process text files and to do system
management tasks.
A flaw was found in Ruby's SSL client's hostname identity check when
handling certificates that contain hostnames with NULL bytes. An
attacker could potentially exploit this flaw to conduct
man-in-the-middle attacks to spoof SSL servers. Note that to exploit
this issue, an attacker would need to obtain a carefully-crafted
certificate signed by an authority that the client trusts.
(CVE-2013-4073)
All users of Ruby are advised to upgrade to these updated packages,
which contain backported patches to resolve this issue."
);
# https://lists.centos.org/pipermail/centos-announce/2013-July/019861.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?406092e7"
);
# https://lists.centos.org/pipermail/centos-announce/2013-July/019862.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?e90fc49e"
);
script_set_attribute(attribute:"solution", value:"Update the affected ruby packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-4073");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
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-irb");
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-rdoc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-ri");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-static");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ruby-tcltk");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/08/18");
script_set_attribute(attribute:"patch_publication_date", value:"2013/07/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/18");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2013-2021 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:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x / 6.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-5", reference:"ruby-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-devel-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-docs-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-irb-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-libs-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-mode-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-rdoc-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-ri-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-tcltk-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-devel-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-docs-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-irb-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-libs-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-rdoc-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-ri-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-static-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"CentOS-6", reference:"ruby-tcltk-1.8.7.352-12.el6_4")) 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, "ruby / ruby-devel / ruby-docs / ruby-irb / ruby-libs / ruby-mode / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
centos | centos | ruby | p-cpe:/a:centos:centos:ruby |
centos | centos | ruby-devel | p-cpe:/a:centos:centos:ruby-devel |
centos | centos | ruby-docs | p-cpe:/a:centos:centos:ruby-docs |
centos | centos | ruby-irb | p-cpe:/a:centos:centos:ruby-irb |
centos | centos | ruby-libs | p-cpe:/a:centos:centos:ruby-libs |
centos | centos | ruby-mode | p-cpe:/a:centos:centos:ruby-mode |
centos | centos | ruby-rdoc | p-cpe:/a:centos:centos:ruby-rdoc |
centos | centos | ruby-ri | p-cpe:/a:centos:centos:ruby-ri |
centos | centos | ruby-static | p-cpe:/a:centos:centos:ruby-static |
centos | centos | ruby-tcltk | p-cpe:/a:centos:centos:ruby-tcltk |