10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.012 Low
EPSS
Percentile
84.9%
Tomas Hoger reports :
A buffer overflow flaw was discovered in the libproxy’s url::get_pac() used to download proxy.pac proxy auto-configuration file. A malicious host hosting proxy.pac, or a man in the middle attacker, could use this flaw to trigger a stack-based buffer overflow in an application using libproxy, if proxy configuration instructed it to download proxy.pac file from a remote HTTP server.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
# copyright notice, this list of conditions and the following
# disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
# published online in any format, converted to PDF, PostScript,
# RTF and other formats) must reproduce the above copyright
# notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(87982);
script_version("2.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2012-4504");
script_name(english:"FreeBSD : libproxy -- stack-based buffer overflow (3b5c2362-bd07-11e5-b7ef-5453ed2e2b49)");
script_summary(english:"Checks for updated packages in pkg_info output");
script_set_attribute(
attribute:"synopsis",
value:
"The remote FreeBSD host is missing one or more security-related
updates."
);
script_set_attribute(
attribute:"description",
value:
"Tomas Hoger reports :
A buffer overflow flaw was discovered in the libproxy's url::get_pac()
used to download proxy.pac proxy auto-configuration file. A malicious
host hosting proxy.pac, or a man in the middle attacker, could use
this flaw to trigger a stack-based buffer overflow in an application
using libproxy, if proxy configuration instructed it to download
proxy.pac file from a remote HTTP server."
);
# https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-4504
script_set_attribute(
attribute:"see_also",
value:"https://nvd.nist.gov/vuln/detail/CVE-2012-4504"
);
# http://www.openwall.com/lists/oss-security/2012/10/12/1
script_set_attribute(
attribute:"see_also",
value:"https://www.openwall.com/lists/oss-security/2012/10/12/1"
);
# https://github.com/libproxy/libproxy/commit/c440553c12836664afd24a24fb3a4d10a2facd2c
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?ef5c1679"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.redhat.com/show_bug.cgi?id=864417"
);
# https://groups.google.com/forum/?fromgroups=#!topic/libproxy/VxZ8No7mT0E
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?e3e8a475"
);
# https://vuxml.freebsd.org/freebsd/3b5c2362-bd07-11e5-b7ef-5453ed2e2b49.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?9bdfef2b"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:freebsd:freebsd:libproxy");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-gnome");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-kde");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-perl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libproxy-webkit");
script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
script_set_attribute(attribute:"vuln_publication_date", value:"2012/10/10");
script_set_attribute(attribute:"patch_publication_date", value:"2016/01/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/19");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"FreeBSD Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
exit(0);
}
include("audit.inc");
include("freebsd_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (pkg_test(save_report:TRUE, pkg:"libproxy>=0.4.0<0.4.6_1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-gnome>=0.4.0<0.4.6_2")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-kde>=0.4.0<0.4.6_6")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-perl>=0.4.0<0.4.6_3")) flag++;
if (pkg_test(save_report:TRUE, pkg:"libproxy-webkit>=0.4.0<0.4.6_4")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
freebsd | freebsd | libproxy | p-cpe:/a:freebsd:freebsd:libproxy |
freebsd | freebsd | libproxy-gnome | p-cpe:/a:freebsd:freebsd:libproxy-gnome |
freebsd | freebsd | libproxy-kde | p-cpe:/a:freebsd:freebsd:libproxy-kde |
freebsd | freebsd | libproxy-perl | p-cpe:/a:freebsd:freebsd:libproxy-perl |
freebsd | freebsd | libproxy-webkit | p-cpe:/a:freebsd:freebsd:libproxy-webkit |
freebsd | freebsd | cpe:/o:freebsd:freebsd |