Fedora 18 : ruby-1.9.3.194-18.fc18 (2012-15376)

2012-10-09T00:00:00
ID FEDORA_2012-15376.NASL
Type nessus
Reporter Tenable
Modified 2015-10-20T00:00:00

Description

Some security flaws were found on ruby currently shipped on Fedora 18 where malicious user can bypass safe mechanize by raising exception intentionally and make arbitrary strings tainted. This flaw were now registered as CVE-2012-4464 and CVE-2012-4466.

This update rpm will fix this issue.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2012-15376.
#

include("compat.inc");

if (description)
{
  script_id(62455);
  script_version("$Revision: 1.7 $");
  script_cvs_date("$Date: 2015/10/20 22:34:51 $");

  script_cve_id("CVE-2012-4464", "CVE-2012-4466");
  script_bugtraq_id(55757);
  script_xref(name:"FEDORA", value:"2012-15376");

  script_name(english:"Fedora 18 : ruby-1.9.3.194-18.fc18 (2012-15376)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Some security flaws were found on ruby currently shipped on Fedora 18
where malicious user can bypass safe mechanize by raising exception
intentionally and make arbitrary strings tainted. This flaw were now
registered as CVE-2012-4464 and CVE-2012-4466.

This update rpm will fix this issue.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=862907"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2012-October/089554.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f47a6f89"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected ruby package.");
  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:fedoraproject:fedora:ruby");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:18");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/10/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/10/09");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2015 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^18([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 18.x", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC18", reference:"ruby-1.9.3.194-18.fc18")) 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");
}