Vulnerabilities > CVE-2013-1821 - Improper Input Validation vulnerability in Ruby-Lang Ruby

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2013:0611 and 
# CentOS Errata and Security Advisory 2013:0611 respectively.
#

include("compat.inc");

if (description)
{
  script_id(65080);
  script_version("1.10");
  script_cvs_date("Date: 2020/01/06");

  script_cve_id("CVE-2013-1821");
  script_bugtraq_id(58141);
  script_xref(name:"RHSA", value:"2013:0611");

  script_name(english:"CentOS 5 : ruby (CESA-2013:0611)");
  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.

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.

It was discovered that Ruby's REXML library did not properly restrict
XML entity expansion. An attacker could use this flaw to cause a
denial of service by tricking a Ruby application using REXML to read
text nodes from specially crafted XML content, which will result in
REXML consuming large amounts of system memory. (CVE-2013-1821)

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-March/019269.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4fb60a74"
  );
  # https://lists.centos.org/pipermail/centos-announce/2013-March/019271.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6df1f9ec"
  );
  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:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-1821");
  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-tcltk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/04/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/03/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/03/08");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 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([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.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-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-devel-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-docs-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-irb-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-libs-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-mode-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-rdoc-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-ri-1.8.5-29.el5_9")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ruby-tcltk-1.8.5-29.el5_9")) 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");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The text description of this plugin is (C) Novell, Inc.
#

if (NASL_LEVEL < 3000) exit(0);

include("compat.inc");

if (description)
{
  script_id(65799);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2011-2686", "CVE-2012-4464", "CVE-2012-4466", "CVE-2012-4522", "CVE-2013-1821");

  script_name(english:"SuSE 10 Security Update : ruby (ZYPP Patch Number 8524)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 10 host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The ruby interpreter received a fix for two security issues :

  - Ruby's $SAFE mechanism enables untrusted user codes to
    run in $SAFE >= 4 mode. This is a kind of sandboxing so
    some operations are restricted in that mode to protect
    other data outside the sandbox. (CVE-2012-4466)

    The problem found was around this mechanism.
    Exception#to_s, NameError#to_s, and name_err_mesg_to_s()
    interpreter-internal API was not correctly handling the
    $SAFE bits so a String object which is not tainted can
    destructively be marked as tainted using them. By using
    this an untrusted code in a sandbox can modify a
    formerly-untainted string destructively.

    http://www.ruby-lang.org/en/news/2012/10/12/cve-2012-446
    4-cve-2012-4466/

  - Ruby before 1.8.7-p352 does not reset the random seed
    upon forking, which makes it easier for
    context-dependent attackers to predict the values of
    random numbers by leveraging knowledge of the number
    sequence obtained in a different child process.
    (CVE-2011-2686)

  - Fix entity expansion DoS vulnerability in REXML. When
    reading text nodes from an XML document, the REXML
    parser could be coerced into allocating extremely large
    string objects which could consume all available memory
    on the system. (CVE-2013-1821)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-2686.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-4464.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-4466.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-4522.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-1821.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply ZYPP patch number 8524.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:suse:suse_linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/08/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/03/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/04/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

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

  exit(0);
}


include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) exit(0, "Local checks are not enabled.");
if (!get_kb_item("Host/SuSE/release")) exit(0, "The host is not running SuSE.");
if (!get_kb_item("Host/SuSE/rpm-list")) exit(1, "Could not obtain the list of installed packages.");

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) exit(1, "Failed to determine the architecture type.");
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") exit(1, "Local checks for SuSE 10 on the '"+cpu+"' architecture have not been implemented.");


flag = 0;
if (rpm_check(release:"SLED10", sp:4, reference:"ruby-1.8.6.p369-0.14.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else exit(0, "The host is not affected.");

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(119065);
  script_version("1.34");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/21");

  script_cve_id(
    "CVE-2014-4975",
    "CVE-2014-8080",
    "CVE-2014-8090"
  );
  script_bugtraq_id(
    68474,
    70935,
    71230
  );

  script_name(english:"EulerOS Virtualization 2.5.1 : ruby (EulerOS-SA-2018-1374)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the ruby packages installed, the EulerOS
Virtualization installation on the remote host is affected by the
following vulnerabilities :

  - The REXML parser in Ruby 1.9.x before 1.9.3-p550, 2.0.x
    before 2.0.0-p594, and 2.1.x before 2.1.4 allows remote
    attackers to cause a denial of service (memory
    consumption) via a crafted XML document, aka an XML
    Entity Expansion (XEE) attack.i1/4^CVE-2014-8080i1/4%0

  - The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel
    551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x
    before 2.1.5 allows remote attackers to cause a denial
    of service (CPU and memory consumption) a crafted XML
    document containing an empty string in an entity that
    is used in a large number of nested entity references,
    aka an XML Entity Expansion (XEE) attack. NOTE: this
    vulnerability exists because of an incomplete fix for
    CVE-2013-1821 and CVE-2014-8080.i1/4^CVE-2014-8090i1/4%0

  - Off-by-one error in the encodes function in pack.c in
    Ruby 1.9.3 and earlier, and 2.x through 2.1.2, when
    using certain format string specifiers, allows
    context-dependent attackers to cause a denial of
    service (segmentation fault) via vectors that trigger a
    stack-based buffer overflow.(CVE-2014-4975)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2018-1374
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?688a1521");
  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:ND/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:"patch_publication_date", value:"2018/11/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-bigdecimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-io-console");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-psych");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-rdoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygems");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.5.1");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.5.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.5.1");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["ruby-2.0.0.353-23.h9",
        "ruby-irb-2.0.0.353-23.h9",
        "ruby-libs-2.0.0.353-23.h9",
        "rubygem-bigdecimal-1.2.0-23.h9",
        "rubygem-io-console-0.4.2-23.h9",
        "rubygem-json-1.7.7-23.h9",
        "rubygem-psych-2.0.0-23.h9",
        "rubygem-rdoc-4.0.0-23.h9",
        "rubygems-2.0.14-23.h9"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) 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");
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(124931);
  script_version("1.19");
  script_cvs_date("$Date$");

  script_cve_id(
    "CVE-2012-4464",
    "CVE-2012-4466",
    "CVE-2012-4522",
    "CVE-2012-5371",
    "CVE-2013-2065",
    "CVE-2013-4073",
    "CVE-2013-4164",
    "CVE-2013-4287",
    "CVE-2013-4363",
    "CVE-2014-4975",
    "CVE-2014-8080",
    "CVE-2014-8090",
    "CVE-2018-16395",
    "CVE-2018-16396",
    "CVE-2018-8780"
  );
  script_bugtraq_id(
    55757,
    56115,
    56484,
    59881,
    60843,
    62281,
    62442,
    63873,
    68474,
    70935,
    71230
  );

  script_name(english:"EulerOS Virtualization 3.0.1.0 : ruby (EulerOS-SA-2019-1428)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the ruby packages installed, the EulerOS
Virtualization installation on the remote host is affected by the
following vulnerabilities :

  - Ruby 1.8.7 before patchlevel 371, 1.9.3 before
    patchlevel 286, and 2.0 before revision r37068 allows
    context-dependent attackers to bypass safe-level
    restrictions and modify untainted strings via the
    name_err_mesg_to_str API function, which marks the
    string as tainted, a different vulnerability than
    CVE-2011-1005.(CVE-2012-4466)

  - The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel
    551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x
    before 2.1.5 allows remote attackers to cause a denial
    of service (CPU and memory consumption) a crafted XML
    document containing an empty string in an entity that
    is used in a large number of nested entity references,
    aka an XML Entity Expansion (XEE) attack. NOTE: this
    vulnerability exists because of an incomplete fix for
    CVE-2013-1821 and CVE-2014-8080.(CVE-2014-8090)

  - Algorithmic complexity vulnerability in
    Gem::Version::VERSION_PATTERN in
    lib/rubygems/version.rb in RubyGems before 1.8.23.1,
    1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x
    before 2.1.0, as used in Ruby 1.9.0 through 2.0.0p247,
    allows remote attackers to cause a denial of service
    (CPU consumption) via a crafted gem version that
    triggers a large amount of backtracking in a regular
    expression.(CVE-2013-4287)

  - The REXML parser in Ruby 1.9.x before 1.9.3-p550, 2.0.x
    before 2.0.0-p594, and 2.1.x before 2.1.4 allows remote
    attackers to cause a denial of service (memory
    consumption) via a crafted XML document, aka an XML
    Entity Expansion (XEE) attack.(CVE-2014-8080)

  - The OpenSSL::SSL.verify_certificate_identity function
    in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374,
    1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does
    not properly handle a '\\0' character in a domain name
    in the Subject Alternative Name field of an X.509
    certificate, which allows man-in-the-middle attackers
    to spoof arbitrary SSL servers via a crafted
    certificate issued by a legitimate Certification
    Authority, a related issue to
    CVE-2009-2408.(CVE-2013-4073)

  - The rb_get_path_check function in file.c in Ruby 1.9.3
    before patchlevel 286 and Ruby 2.0.0 before r37163
    allows context-dependent attackers to create files in
    unexpected locations or with unexpected names via a NUL
    byte in a file path.(CVE-2012-4522)

  - (1) DL and (2) Fiddle in Ruby 1.9 before 1.9.3
    patchlevel 426, and 2.0 before 2.0.0 patchlevel 195, do
    not perform taint checking for native functions, which
    allows context-dependent attackers to bypass intended
    $SAFE level restrictions.(CVE-2013-2065)

  - Algorithmic complexity vulnerability in
    Gem::Version::ANCHORED_VERSION_PATTERN in
    lib/rubygems/version.rb in RubyGems before 1.8.23.2,
    1.8.24 through 1.8.26, 2.0.x before 2.0.10, and 2.1.x
    before 2.1.5, as used in Ruby 1.9.0 through 2.0.0p247,
    allows remote attackers to cause a denial of service
    (CPU consumption) via a crafted gem version that
    triggers a large amount of backtracking in a regular
    expression. NOTE: this issue is due to an incomplete
    fix for CVE-2013-4287.(CVE-2013-4363)

  - Ruby (aka CRuby) 1.9 before 1.9.3-p327 and 2.0 before
    r37575 computes hash values without properly
    restricting the ability to trigger hash collisions
    predictably, which allows context-dependent attackers
    to cause a denial of service (CPU consumption) via
    crafted input to an application that maintains a hash
    table, as demonstrated by a universal multicollision
    attack against a variant of the MurmurHash2 algorithm,
    a different vulnerability than
    CVE-2011-4815.(CVE-2012-5371)

  - Off-by-one error in the encodes function in pack.c in
    Ruby 1.9.3 and earlier, and 2.x through 2.1.2, when
    using certain format string specifiers, allows
    context-dependent attackers to cause a denial of
    service (segmentation fault) via vectors that trigger a
    stack-based buffer overflow.(CVE-2014-4975)

  - Heap-based buffer overflow in Ruby 1.8, 1.9 before
    1.9.3-p484, 2.0 before 2.0.0-p353, 2.1 before 2.1.0
    preview2, and trunk before revision 43780 allows
    context-dependent attackers to cause a denial of
    service (segmentation fault) and possibly execute
    arbitrary code via a string that is converted to a
    floating point value, as demonstrated using (1) the
    to_f method or (2) JSON.parse.(CVE-2013-4164)

  - It was found that the methods from the Dir class did
    not properly handle strings containing the NULL byte.
    An attacker, able to inject NULL bytes in a path, could
    possibly trigger an unspecified behavior of the ruby
    script.(CVE-2018-8780)

  - Ruby 1.9.3 before patchlevel 286 and 2.0 before
    revision r37068 allows context-dependent attackers to
    bypass safe-level restrictions and modify untainted
    strings via the (1) exc_to_s or (2) name_err_to_s API
    function, which marks the string as tainted, a
    different vulnerability than CVE-2012-4466. NOTE: this
    issue might exist because of a CVE-2011-1005
    regression.(CVE-2012-4464)

  - An issue was discovered in the OpenSSL library in Ruby
    before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2,
    and 2.6.x before 2.6.0-preview3. When two
    OpenSSL::X509::Name objects are compared using ==,
    depending on the ordering, non-equal objects may return
    true. When the first argument is one character longer
    than the second, or the second argument contains a
    character that is one less than a character in the same
    position of the first argument, the result of == will
    be true. This could be leveraged to create an
    illegitimate certificate that may be accepted as
    legitimate and then used in signing or encryption
    operations.(CVE-2018-16395)

  - An issue was discovered in Ruby before 2.3.8, 2.4.x
    before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before
    2.6.0-preview3. It does not taint strings that result
    from unpacking tainted strings with some
    formats.(CVE-2018-16396)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1428
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?81cbe7ae");
  script_set_attribute(attribute:"solution", value:
"Update the affected ruby packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-8780");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-bigdecimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-io-console");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-psych");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-rdoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygems");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.1.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.1.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.1.0");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["ruby-2.0.0.648-33.h12",
        "ruby-irb-2.0.0.648-33.h12",
        "ruby-libs-2.0.0.648-33.h12",
        "rubygem-bigdecimal-1.2.0-33.h12",
        "rubygem-io-console-0.4.2-33.h12",
        "rubygem-json-1.7.7-33.h12",
        "rubygem-psych-2.0.0-33.h12",
        "rubygem-rdoc-4.0.0-33.h12",
        "rubygems-2.0.14.1-33.h12"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) 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, "ruby");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2013-195.
#

include("compat.inc");

if (description)
{
  script_id(69753);
  script_version("1.6");
  script_cvs_date("Date: 2018/04/18 15:09:35");

  script_cve_id("CVE-2013-1821");
  script_xref(name:"ALAS", value:"2013-195");

  script_name(english:"Amazon Linux AMI : ruby19 (ALAS-2013-195)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows
remote attackers to cause a denial of service (memory consumption and
crash) via crafted text nodes in an XML document, aka an XML Entity
Expansion (XEE) attack."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2013-195.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update ruby19' to update your system."
  );
  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:amazon:linux:ruby19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby19-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby19-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby19-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby19-irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby19-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygem19-bigdecimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygem19-io-console");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygem19-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygem19-minitest");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygem19-rake");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygem19-rdoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygems19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rubygems19-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/05/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"Amazon Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", reference:"ruby19-1.9.3.392-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby19-debuginfo-1.9.3.392-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby19-devel-1.9.3.392-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby19-doc-1.9.3.392-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby19-irb-1.9.3.392-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby19-libs-1.9.3.392-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygem19-bigdecimal-1.1.0-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygem19-io-console-0.3-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygem19-json-1.5.5-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygem19-minitest-2.5.1-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygem19-rake-0.9.2.2-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygem19-rdoc-3.9.5-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygems19-1.8.23-29.38.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"rubygems19-devel-1.8.23-29.38.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ruby19 / ruby19-debuginfo / ruby19-devel / ruby19-doc / ruby19-irb / etc");
}

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2013:124. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(66136);
  script_version("1.7");
  script_cvs_date("Date: 2019/08/02 13:32:55");

  script_cve_id("CVE-2012-4466", "CVE-2012-4481", "CVE-2013-1821");
  script_bugtraq_id(55757, 55813, 58141);
  script_xref(name:"MDVSA", value:"2013:124");
  script_xref(name:"MGASA", value:"2012-0294");
  script_xref(name:"MGASA", value:"2013-0092");

  script_name(english:"Mandriva Linux Security Advisory : ruby (MDVSA-2013:124)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated ruby packages fix security vulnerabilities :

Shugo Maedo and Vit Ondruch discovered that Ruby incorrectly allowed
untainted strings to be modified in protective safe levels. An
attacker could use this flaw to bypass intended access restrictions
(CVE-2012-4466, CVE-2012-4481).

It was discovered that Ruby's REXML library did not properly restrict
XML entity expansion. An attacker could use this flaw to cause a
denial of service by tricking a Ruby application using REXML to read
text nodes from specially crafted XML content, which will result in
REXML consuming large amounts of system memory (CVE-2013-1821)."
  );
  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:P/A:N");
  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:mandriva:linux:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ruby-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ruby-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ruby-tk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/04/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/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);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"ruby-1.8.7.p358-2.1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"ruby-devel-1.8.7.p358-2.1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", reference:"ruby-doc-1.8.7.p358-2.1.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"ruby-tk-1.8.7.p358-2.1.mbs1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2013-173.
#

include("compat.inc");

if (description)
{
  script_id(69732);
  script_version("1.6");
  script_cvs_date("Date: 2018/04/18 15:09:35");

  script_cve_id("CVE-2011-1005", "CVE-2012-4481", "CVE-2013-1821");
  script_xref(name:"ALAS", value:"2013-173");
  script_xref(name:"RHSA", value:"2013:0612");

  script_name(english:"Amazon Linux AMI : ruby (ALAS-2013-173)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that Ruby's REXML library did not properly restrict
XML entity expansion. An attacker could use this flaw to cause a
denial of service by tricking a Ruby application using REXML to read
text nodes from specially crafted XML content, which will result in
REXML consuming large amounts of system memory. (CVE-2013-1821)

It was found that the RHSA-2011-0910 update did not correctly fix the
CVE-2011-1005 issue, a flaw in the method for translating an exception
message into a string in the Exception class. A remote attacker could
use this flaw to bypass safe level 4 restrictions, allowing untrusted
(tainted) code to modify arbitrary, trusted (untainted) strings, which
safe level 4 restrictions would otherwise prevent. (CVE-2012-4481)

The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through
1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify
strings via the Exception#to_s method, as demonstrated by changing an
intended pathname. (CVE-2011-1005)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2013-173.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update ruby' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby-irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby-rdoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby-ri");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ruby-static");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/03/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"Amazon Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", reference:"ruby-1.8.7.371-2.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby-debuginfo-1.8.7.371-2.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby-devel-1.8.7.371-2.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby-irb-1.8.7.371-2.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby-libs-1.8.7.371-2.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby-rdoc-1.8.7.371-2.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby-ri-1.8.7.371-2.25.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"ruby-static-1.8.7.371-2.25.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  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-irb / ruby-libs / etc");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2738. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(69398);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2013-1821", "CVE-2013-4073");
  script_bugtraq_id(58141, 60843);
  script_xref(name:"DSA", value:"2738");

  script_name(english:"Debian DSA-2738-1 : ruby1.9.1 - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in the interpreter for
the Ruby language, which may lead to denial of service and other
security problems. The Common Vulnerabilities and Exposures project
identifies the following problems :

  - CVE-2013-1821
    Ben Murphy discovered that unrestricted entity expansion
    in REXML can lead to a Denial of Service by consuming
    all host memory.

  - CVE-2013-4073
    William (B.J.) Snow Orvis discovered a vulnerability in
    the hostname checking in Ruby's SSL client that could
    allow man-in-the-middle attackers to spoof SSL servers
    via valid certificate issued by a trusted certification
    authority."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702525"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714543"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-1821"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-4073"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/ruby1.9.1"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2013/dsa-2738"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the ruby1.9.1 packages.

For the oldstable distribution (squeeze), these problems have been
fixed in version 1.9.2.0-2+deb6u1.

For the stable distribution (wheezy), these problems have been fixed
in version 1.9.3.194-8.1+deb7u1."
  );
  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:debian:debian_linux:ruby1.9.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/08/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/08/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"ruby1.9.1", reference:"1.9.2.0-2+deb6u1")) flag++;
if (deb_check(release:"7.0", prefix:"libruby1.9.1", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libruby1.9.1-dbg", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libtcltk-ruby1.9.1", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ri1.9.1", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1-dev", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1-examples", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.1-full", reference:"1.9.3.194-8.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.9.3", reference:"1.9.3.194-8.1+deb7u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2809. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(71220);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2013-1821", "CVE-2013-4073", "CVE-2013-4164");
  script_bugtraq_id(58141, 60843, 63873);
  script_xref(name:"DSA", value:"2809");

  script_name(english:"Debian DSA-2809-1 : ruby1.8 - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in the interpreter for
the Ruby language. The Common Vulnerabilities and Exposures project
identifies the following problems :

  - CVE-2013-1821
    Ben Murphy discovered that unrestricted entity expansion
    in REXML can lead to a Denial of Service by consuming
    all host memory.

  - CVE-2013-4073
    William (B.J.) Snow Orvis discovered a vulnerability in
    the hostname checking in Ruby's SSL client that could
    allow man-in-the-middle attackers to spoof SSL servers
    via a crafted certificate issued by a trusted
    certification authority.

  - CVE-2013-4164
    Charlie Somerville discovered that Ruby incorrectly
    handled floating point number conversion. If an
    application using Ruby accepted untrusted input strings
    and converted them to floating point numbers, an
    attacker able to provide such input could cause the
    application to crash or, possibly, execute arbitrary
    code with the privileges of the application."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702526"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714541"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=730189"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-1821"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-4073"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-4164"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/ruby1.8"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/ruby1.8"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2013/dsa-2809"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the ruby1.8 packages.

For the oldstable distribution (squeeze), these problems have been
fixed in version 1.8.7.302-2squeeze2.

For the stable distribution (wheezy), these problems have been fixed
in version 1.8.7.358-7.1+deb7u1."
  );
  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:debian:debian_linux:ruby1.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/12/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"libruby1.8", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libruby1.8-dbg", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"libtcltk-ruby1.8", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"ri1.8", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"ruby1.8", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"ruby1.8-dev", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"ruby1.8-elisp", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"ruby1.8-examples", reference:"1.8.7.302-2squeeze2")) flag++;
if (deb_check(release:"7.0", prefix:"libruby1.8", reference:"1.8.7.358-7.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libruby1.8-dbg", reference:"1.8.7.358-7.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libtcltk-ruby1.8", reference:"1.8.7.358-7.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ri1.8", reference:"1.8.7.358-7.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.8", reference:"1.8.7.358-7.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.8-dev", reference:"1.8.7.358-7.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.8-examples", reference:"1.8.7.358-7.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby1.8-full", reference:"1.8.7.358-7.1+deb7u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");