CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
EPSS
Percentile
26.9%
Ronald Volgers discovered that the mount.cifs utility, when installed as a setuid program, suffered from a race condition when verifying user permissions. A local attacker could trick samba into mounting over arbitrary locations, leading to a root privilege escalation.
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.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-893-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include("compat.inc");
if (description)
{
script_id(44336);
script_version("1.14");
script_cvs_date("Date: 2019/09/19 12:54:26");
script_cve_id("CVE-2010-0787");
script_xref(name:"USN", value:"893-1");
script_name(english:"Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : samba vulnerability (USN-893-1)");
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:
"Ronald Volgers discovered that the mount.cifs utility, when installed
as a setuid program, suffered from a race condition when verifying
user permissions. A local attacker could trick samba into mounting
over arbitrary locations, leading to a root privilege escalation.
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/893-1/"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
script_cwe_id(59);
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:python2.4-samba");
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-common-bin");
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:6.06:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.10");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.04");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.10");
script_set_attribute(attribute:"vuln_publication_date", value:"2010/03/02");
script_set_attribute(attribute:"patch_publication_date", value:"2010/01/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/29");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 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 (! preg(pattern:"^(6\.06|8\.04|8\.10|9\.04|9\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06 / 8.04 / 8.10 / 9.04 / 9.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);
flag = 0;
if (ubuntu_check(osver:"6.06", pkgname:"libpam-smbpass", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libsmbclient", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libsmbclient-dev", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"python2.4-samba", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"samba", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"samba-common", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"samba-dbg", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"samba-doc", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"samba-doc-pdf", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"smbclient", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"smbfs", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"swat", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"winbind", pkgver:"3.0.22-1ubuntu3.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libpam-smbpass", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libsmbclient", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libsmbclient-dev", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"samba", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"samba-common", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"samba-dbg", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"samba-doc", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"samba-doc-pdf", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"smbclient", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"smbfs", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"swat", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"winbind", pkgver:"3.0.28a-1ubuntu4.10")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libpam-smbpass", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libsmbclient", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libsmbclient-dev", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libwbclient0", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-common", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-dbg", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-doc", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-doc-pdf", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"samba-tools", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"smbclient", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"smbfs", pkgver:"2:3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"swat", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"winbind", pkgver:"3.2.3-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"libpam-smbpass", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"libsmbclient", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"libsmbclient-dev", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"libwbclient0", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"samba", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"samba-common", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"samba-dbg", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"samba-doc", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"samba-doc-pdf", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"samba-tools", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"smbclient", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"smbfs", pkgver:"2:3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"swat", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"winbind", pkgver:"3.3.2-1ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libpam-smbpass", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libsmbclient", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libsmbclient-dev", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libwbclient0", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"samba", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"samba-common", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"samba-common-bin", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"samba-dbg", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"samba-doc", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"samba-doc-pdf", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"samba-tools", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"smbclient", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"smbfs", pkgver:"2:3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"swat", pkgver:"3.4.0-3ubuntu5.4")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"winbind", pkgver:"3.4.0-3ubuntu5.4")) 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");
}