CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS
Percentile
77.1%
Chmouel Boudjnah discovered that Keystone did not properly invalidate user tokens when a tenant was disabled which allowed an authenticated user to retain access via the token. (CVE-2013-4222)
Kieran Spear discovered that Keystone did not properly verify PKI tokens when performing revocation when using the memcache and KVS backends. An authenticated attacker could exploit this to bypass intended access restrictions. (CVE-2013-4294).
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-2002-1. 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(70581);
script_version("1.6");
script_cvs_date("Date: 2019/09/19 12:54:29");
script_cve_id("CVE-2013-4222", "CVE-2013-4294");
script_bugtraq_id(61725, 62331);
script_xref(name:"USN", value:"2002-1");
script_name(english:"Ubuntu 12.10 / 13.04 : keystone vulnerabilities (USN-2002-1)");
script_summary(english:"Checks dpkg output for updated package.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Ubuntu host is missing a security-related patch."
);
script_set_attribute(
attribute:"description",
value:
"Chmouel Boudjnah discovered that Keystone did not properly invalidate
user tokens when a tenant was disabled which allowed an authenticated
user to retain access via the token. (CVE-2013-4222)
Kieran Spear discovered that Keystone did not properly verify PKI
tokens when performing revocation when using the memcache and KVS
backends. An authenticated attacker could exploit this to bypass
intended access restrictions. (CVE-2013-4294).
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/2002-1/"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected python-keystone package."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
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:canonical:ubuntu_linux:python-keystone");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.10");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:13.04");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/09/23");
script_set_attribute(attribute:"patch_publication_date", value:"2013/10/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/24");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"Ubuntu Security Notice (C) 2013-2019 Canonical, Inc. / NASL script (C) 2013-2019 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:"^(12\.10|13\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.10 / 13.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);
flag = 0;
if (ubuntu_check(osver:"12.10", pkgname:"python-keystone", pkgver:"2012.2.4-0ubuntu3.2")) flag++;
if (ubuntu_check(osver:"13.04", pkgname:"python-keystone", pkgver:"1:2013.1.3-0ubuntu1.1")) 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, "python-keystone");
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | python-keystone | p-cpe:/a:canonical:ubuntu_linux:python-keystone |
canonical | ubuntu_linux | 12.10 | cpe:/o:canonical:ubuntu_linux:12.10 |
canonical | ubuntu_linux | 13.04 | cpe:/o:canonical:ubuntu_linux:13.04 |