Lucene search

K
nessusUbuntu Security Notice (C) 2009-2019 Canonical, Inc. / NASL script (C) 2009-2018 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-702-1.NASL
HistoryApr 23, 2009 - 12:00 a.m.

Ubuntu 8.10 : samba vulnerability (USN-702-1)

2009-04-2300:00:00
Ubuntu Security Notice (C) 2009-2019 Canonical, Inc. / NASL script (C) 2009-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
9

Gunter Hockel discovered that Samba with registry shares enabled did not properly validate share names. An authenticated user could gain access to the root filesystem by using an older version of smbclient and specifying an empty string as a share name. This is only an issue if registry shares are enabled on the server by setting โ€˜registry shares = yesโ€™, โ€˜include = registryโ€™, or โ€˜config backend = registryโ€™, which is not the default.

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.

#%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-702-1. 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(37362);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2009-0022");
  script_xref(name:"USN", value:"702-1");

  script_name(english:"Ubuntu 8.10 : samba vulnerability (USN-702-1)");
  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:
"Gunter Hockel discovered that Samba with registry shares enabled did
not properly validate share names. An authenticated user could gain
access to the root filesystem by using an older version of smbclient
and specifying an empty string as a share name. This is only an issue
if registry shares are enabled on the server by setting 'registry
shares = yes', 'include = registry', or 'config backend = registry',
which is not the default.

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/702-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:C/I:N/A:N");
  script_cwe_id(20);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpam-smbpass");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsmbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libsmbclient-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libwbclient0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:samba-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:samba-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:samba-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:samba-doc-pdf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:samba-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:smbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:smbfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:swat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:winbind");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/01/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/04/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2009-2019 Canonical, Inc. / NASL script (C) 2009-2018 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:"^(8\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 8.10", "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:"8.10", pkgname:"libpam-smbpass", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libsmbclient", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libsmbclient-dev", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libwbclient0", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba", pkgver:"2:3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-common", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-dbg", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-doc", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-doc-pdf", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-tools", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"smbclient", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"smbfs", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"swat", pkgver:"3.2.3-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"winbind", pkgver:"3.2.3-1ubuntu3.4")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "libpam-smbpass / libsmbclient / libsmbclient-dev / libwbclient0 / etc");
}
VendorProductVersionCPE
canonicalubuntu_linuxlibpam-smbpassp-cpe:/a:canonical:ubuntu_linux:libpam-smbpass
canonicalubuntu_linuxlibsmbclientp-cpe:/a:canonical:ubuntu_linux:libsmbclient
canonicalubuntu_linuxlibsmbclient-devp-cpe:/a:canonical:ubuntu_linux:libsmbclient-dev
canonicalubuntu_linuxlibwbclient0p-cpe:/a:canonical:ubuntu_linux:libwbclient0
canonicalubuntu_linuxsambap-cpe:/a:canonical:ubuntu_linux:samba
canonicalubuntu_linuxsamba-commonp-cpe:/a:canonical:ubuntu_linux:samba-common
canonicalubuntu_linuxsamba-dbgp-cpe:/a:canonical:ubuntu_linux:samba-dbg
canonicalubuntu_linuxsamba-docp-cpe:/a:canonical:ubuntu_linux:samba-doc
canonicalubuntu_linuxsamba-doc-pdfp-cpe:/a:canonical:ubuntu_linux:samba-doc-pdf
canonicalubuntu_linuxsamba-toolsp-cpe:/a:canonical:ubuntu_linux:samba-tools
Rows per page:
1-10 of 151