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Fedora 20 : perl-Authen-Captcha-1.024-1.fc20 (2014-4455)

🗓️ 07 Apr 2014 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 8 Views

An issue in perl-Authen-Captcha-1.024-1.fc20 allows easy breaking of generated public string for captcha due to checksum of secret string. Fixed in v1.024

Refs
Code
SourceLink
nessuswww.nessus.org/u
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2014-4455.
#

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

if (description)
{
  script_id(73361);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_xref(name:"FEDORA", value:"2014-4455");

  script_name(english:"Fedora 20 : perl-Authen-Captcha-1.024-1.fc20 (2014-4455)");
  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:
"An issue in previous versions of perl-Authen-Captcha is that the
generated public string (file name of the picture) for the captcha is
merely a checksum of the secret string. It is trivial to break such
short strings even using google instead of a rainbow table.

Version 1.024 of the module fixes this.

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."
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2014-April/131155.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?39e9cd65"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected perl-Authen-Captcha package."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:perl-Authen-Captcha");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:20");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/03/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/04/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2021 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:"^20([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 20.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:"FC20", reference:"perl-Authen-Captcha-1.024-1.fc20")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "perl-Authen-Captcha");
}

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11 Jan 2021 00:00Current
5.5Medium risk
Vulners AI Score5.5
8