Ubuntu 6.06 LTS / 6.10 / 7.04 : krb5 vulnerabilities (USN-477-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-477-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

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

if (description)
{
  script_id(28078);
  script_version("1.18");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2007-2442", "CVE-2007-2443", "CVE-2007-2798");
  script_xref(name:"USN", value:"477-1");

  script_name(english:"Ubuntu 6.06 LTS / 6.10 / 7.04 : krb5 vulnerabilities (USN-477-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Wei Wang discovered that the krb5 RPC library did not correctly handle
certain error conditions. A remote attacker could cause kadmind to
free an uninitialized pointer, leading to a denial of service or
possibly execution of arbitrary code with root privileges.
(CVE-2007-2442)

Wei Wang discovered that the krb5 RPC library did not correctly check
the size of certain communications. A remote attacker could send a
specially crafted request to kadmind and execute arbitrary code with
root privileges. (CVE-2007-2443)

It was discovered that the kadmind service could be made to overflow
its stack. A remote attacker could send a specially crafted request
and execute arbitrary code with root privileges. (CVE-2007-2798).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/477-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-admin-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-ftpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-kdc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-rsh-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-telnetd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-user");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkadm55");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkrb5-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkrb5-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkrb53");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:7.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/06/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2007-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(6\.06|6\.10|7\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06 / 6.10 / 7.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"6.06", pkgname:"krb5-admin-server", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"krb5-clients", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"krb5-doc", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"krb5-ftpd", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"krb5-kdc", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"krb5-rsh-server", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"krb5-telnetd", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"krb5-user", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libkadm55", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libkrb5-dev", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libkrb53", pkgver:"1.4.3-5ubuntu0.4")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-admin-server", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-clients", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-doc", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-ftpd", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-kdc", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-rsh-server", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-telnetd", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"krb5-user", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libkadm55", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libkrb5-dbg", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libkrb5-dev", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"libkrb53", pkgver:"1.4.3-9ubuntu1.3")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-admin-server", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-clients", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-doc", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-ftpd", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-kdc", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-rsh-server", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-telnetd", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"krb5-user", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"libkadm55", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"libkrb5-dbg", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"libkrb5-dev", pkgver:"1.4.4-5ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.04", pkgname:"libkrb53", pkgver:"1.4.4-5ubuntu3.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-admin-server / krb5-clients / krb5-doc / krb5-ftpd / krb5-kdc / etc");
}