Go mishandles P-521 and P-384 elliptic curves, which allows attackers to cause a denial of service (CPU consumption) or possibly conduct ECDH private key recovery attacks.(CVE-2019-6486)
Note: This CVE is also fixed in golang-1.11.3-2.amzn2.0.2 in the golang1.11 extras repository.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2019-1172.
#
include("compat.inc");
if (description)
{
script_id(122678);
script_version("1.2");
script_cvs_date("Date: 2020/02/06");
script_cve_id("CVE-2019-6486");
script_xref(name:"ALAS", value:"2019-1172");
script_name(english:"Amazon Linux 2 : golang (ALAS-2019-1172)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Amazon Linux 2 host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"Go mishandles P-521 and P-384 elliptic curves, which allows attackers
to cause a denial of service (CPU consumption) or possibly conduct
ECDH private key recovery attacks.(CVE-2019-6486)
Note: This CVE is also fixed in golang-1.11.3-2.amzn2.0.2 in the
golang1.11 extras repository."
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/AL2/ALAS-2019-1172.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update golang' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:L/PR:N/UI:N/S:U/C:L/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
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:amazon:linux:golang");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-docs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-misc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-src");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-tests");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/24");
script_set_attribute(attribute:"patch_publication_date", value:"2019/03/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/08");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Amazon Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"golang-1.9.4-3.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"golang-bin-1.9.4-3.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"golang-docs-1.9.4-3.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"golang-misc-1.9.4-3.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"golang-src-1.9.4-3.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"golang-tests-1.9.4-3.amzn2.0.1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "golang / golang-bin / golang-docs / golang-misc / golang-src / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | golang | p-cpe:/a:amazon:linux:golang |
amazon | linux | golang-bin | p-cpe:/a:amazon:linux:golang-bin |
amazon | linux | golang-docs | p-cpe:/a:amazon:linux:golang-docs |
amazon | linux | golang-misc | p-cpe:/a:amazon:linux:golang-misc |
amazon | linux | golang-src | p-cpe:/a:amazon:linux:golang-src |
amazon | linux | golang-tests | p-cpe:/a:amazon:linux:golang-tests |
amazon | linux | 2 | cpe:/o:amazon:linux:2 |