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nessusThis script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.FREEBSD_PKG_DB4B2F27252A11EB865C00155D646400.NASL
HistoryNov 13, 2020 - 12:00 a.m.

FreeBSD : go -- math/big: panic during recursive division of very large numbers; cmd/go: arbitrary code execution at build time through cgo (db4b2f27-252a-11eb-865c-00155d646400)

2020-11-1300:00:00
This script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
4

The Go project reports :

A number of math/big.Int methods (Div, Exp, DivMod, Quo, Rem, QuoRem, Mod, ModInverse, ModSqrt, Jacobi, and GCD) can panic when provided crafted large inputs. For the panic to happen, the divisor or modulo argument must be larger than 3168 bits (on 32-bit architectures) or 6336 bits (on 64-bit architectures). Multiple math/big.Rat methods are similarly affected.

The go command may execute arbitrary code at build time when cgo is in use. This may occur when running go get on a malicious package, or any other command that builds untrusted code. This can be caused by a malicious gcc flags specified via a #cgo directive.

The go command may execute arbitrary code at build time when cgo is in use. This may occur when running go get on a malicious package, or any other command that builds untrusted code. This can be caused by malicious unquoted symbol names.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2021 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("compat.inc");

if (description)
{
  script_id(142883);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/07/06");

  script_cve_id("CVE-2020-28362", "CVE-2020-28366", "CVE-2020-28367");
  script_xref(name:"IAVB", value:"2020-B-0071-S");

  script_name(english:"FreeBSD : go -- math/big: panic during recursive division of very large numbers; cmd/go: arbitrary code execution at build time through cgo (db4b2f27-252a-11eb-865c-00155d646400)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The Go project reports :

A number of math/big.Int methods (Div, Exp, DivMod, Quo, Rem, QuoRem,
Mod, ModInverse, ModSqrt, Jacobi, and GCD) can panic when provided
crafted large inputs. For the panic to happen, the divisor or modulo
argument must be larger than 3168 bits (on 32-bit architectures) or
6336 bits (on 64-bit architectures). Multiple math/big.Rat methods are
similarly affected.

The go command may execute arbitrary code at build time when cgo is in
use. This may occur when running go get on a malicious package, or any
other command that builds untrusted code. This can be caused by a
malicious gcc flags specified via a #cgo directive.

The go command may execute arbitrary code at build time when cgo is in
use. This may occur when running go get on a malicious package, or any
other command that builds untrusted code. This can be caused by
malicious unquoted symbol names."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://github.com/golang/go/issues/42552"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://github.com/golang/go/issues/42556"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://github.com/golang/go/issues/42559"
  );
  # https://vuxml.freebsd.org/freebsd/db4b2f27-252a-11eb-865c-00155d646400.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?af664f16"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-28367");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:go");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/11/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/11/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/13");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020-2021 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:"go<1.15.5,1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersion
freebsdfreebsdgo
freebsdfreebsd
Related for FREEBSD_PKG_DB4B2F27252A11EB865C00155D646400.NASL