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. The text
# itself is copyright (C) Red Hat, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(68944);
script_version("1.17");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2013-4073");
script_bugtraq_id(60843);
script_xref(name:"RHSA", value:"2013:1090");
script_name(english:"RHEL 5 / 6 : ruby (RHSA-2013:1090)");
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 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."
);
script_set_attribute(
attribute:"see_also",
value:"http://www.ruby-lang.org/en/news/2013/06/27/"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2013:1090"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2013-4073"
);
script_set_attribute(attribute:"solution", value:"Update the affected 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:"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:redhat:enterprise_linux:ruby");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-docs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-irb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-mode");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-rdoc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-ri");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-static");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ruby-tcltk");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.9");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6.4");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/08/17");
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:"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:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x / 6.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "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-2013:1090";
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:"RHEL5", cpu:"i386", reference:"ruby-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"ruby-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"ruby-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", reference:"ruby-debuginfo-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", reference:"ruby-devel-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"ruby-docs-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"ruby-docs-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"ruby-docs-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"ruby-irb-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"ruby-irb-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"ruby-irb-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", reference:"ruby-libs-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"ruby-mode-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"ruby-mode-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"ruby-mode-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"ruby-rdoc-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"ruby-rdoc-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"ruby-rdoc-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"ruby-ri-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"ruby-ri-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"ruby-ri-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"i386", reference:"ruby-tcltk-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"ruby-tcltk-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"ruby-tcltk-1.8.5-31.el5_9")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ruby-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ruby-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ruby-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", reference:"ruby-debuginfo-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", reference:"ruby-devel-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ruby-docs-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ruby-docs-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ruby-docs-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ruby-irb-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ruby-irb-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ruby-irb-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", reference:"ruby-libs-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ruby-rdoc-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ruby-rdoc-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ruby-rdoc-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ruby-ri-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ruby-ri-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ruby-ri-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ruby-static-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ruby-static-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ruby-static-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ruby-tcltk-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ruby-tcltk-1.8.7.352-12.el6_4")) flag++;
if (rpm_check(release:"RHEL6", cpu:"x86_64", 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() + 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, "ruby / ruby-debuginfo / ruby-devel / ruby-docs / ruby-irb / etc");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | ruby | p-cpe:/a:redhat:enterprise_linux:ruby |
redhat | enterprise_linux | ruby-debuginfo | p-cpe:/a:redhat:enterprise_linux:ruby-debuginfo |
redhat | enterprise_linux | ruby-devel | p-cpe:/a:redhat:enterprise_linux:ruby-devel |
redhat | enterprise_linux | ruby-docs | p-cpe:/a:redhat:enterprise_linux:ruby-docs |
redhat | enterprise_linux | ruby-irb | p-cpe:/a:redhat:enterprise_linux:ruby-irb |
redhat | enterprise_linux | ruby-libs | p-cpe:/a:redhat:enterprise_linux:ruby-libs |
redhat | enterprise_linux | ruby-mode | p-cpe:/a:redhat:enterprise_linux:ruby-mode |
redhat | enterprise_linux | ruby-rdoc | p-cpe:/a:redhat:enterprise_linux:ruby-rdoc |
redhat | enterprise_linux | ruby-ri | p-cpe:/a:redhat:enterprise_linux:ruby-ri |
redhat | enterprise_linux | ruby-static | p-cpe:/a:redhat:enterprise_linux:ruby-static |