CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
94.2%
The remote host is affected by the vulnerability described in GLSA-200705-20 (Blackdown Java: Applet privilege escalation)
Chris Evans has discovered multiple buffer overflows in the Sun JDK and the Sun JRE possibly related to various AWT and font layout functions.
Tom Hawtin has discovered an unspecified vulnerability in the Sun JDK and the Sun JRE relating to unintended applet data access. He has also discovered multiple other unspecified vulnerabilities in the Sun JDK and the Sun JRE allowing unintended Java applet or application resource acquisition. Additionally, a memory corruption error has been found in the handling of GIF images with zero width field blocks.
Impact :
An attacker could entice a user to run a specially crafted Java applet or application that could read, write, or execute local files with the privileges of the user running the JVM, access data maintained in other Java applets, or escalate the privileges of the currently running Java applet or application allowing for unauthorized access to system resources.
Workaround :
Disable the 'nsplugin' USE flag in order to prevent web applets from being run.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200705-20.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(25341);
script_version("1.15");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2006-6731", "CVE-2006-6736", "CVE-2006-6737", "CVE-2006-6745");
script_xref(name:"GLSA", value:"200705-20");
script_name(english:"GLSA-200705-20 : Blackdown Java: Applet privilege escalation");
script_summary(english:"Checks for updated package(s) in /var/db/pkg");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Gentoo host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"The remote host is affected by the vulnerability described in GLSA-200705-20
(Blackdown Java: Applet privilege escalation)
Chris Evans has discovered multiple buffer overflows in the Sun JDK and
the Sun JRE possibly related to various AWT and font layout functions.
Tom Hawtin has discovered an unspecified vulnerability in the Sun JDK
and the Sun JRE relating to unintended applet data access. He has also
discovered multiple other unspecified vulnerabilities in the Sun JDK
and the Sun JRE allowing unintended Java applet or application resource
acquisition. Additionally, a memory corruption error has been found in
the handling of GIF images with zero width field blocks.
Impact :
An attacker could entice a user to run a specially crafted Java applet
or application that could read, write, or execute local files with the
privileges of the user running the JVM, access data maintained in other
Java applets, or escalate the privileges of the currently running Java
applet or application allowing for unauthorized access to system
resources.
Workaround :
Disable the 'nsplugin' USE flag in order to prevent web applets from
being run."
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200705-20"
);
script_set_attribute(
attribute:"solution",
value:
"Since there is no fixed update from Blackdown and since the flaw only
occurs in the applets, the 'nsplugin' USE flag has been masked in the
portage tree. Emerge the ebuild again in order to fix the
vulnerability. Another solution is to switch to another Java
implementation such as the Sun implementation (dev-java/sun-jdk and
dev-java/sun-jre-bin).
# emerge --sync
# emerge --ask --oneshot --verbose 'dev-java/blackdown-jdk'
# emerge --ask --oneshot --verbose 'dev-java/blackdown-jre'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:blackdown-jdk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:blackdown-jre");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2007/05/26");
script_set_attribute(attribute:"plugin_publication_date", value:"2007/05/29");
script_set_attribute(attribute:"vuln_publication_date", value:"2006/12/19");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2007-2021 Tenable Network Security, Inc.");
script_family(english:"Gentoo Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (qpkg_check(package:"dev-java/blackdown-jre", unaffected:make_list("ge 1.4.2.03-r14"), vulnerable:make_list("lt 1.4.2.03-r14"))) flag++;
if (qpkg_check(package:"dev-java/blackdown-jdk", unaffected:make_list("ge 1.4.2.03-r14"), vulnerable:make_list("lt 1.4.2.03-r14"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Blackdown Java");
}