The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2020:5010-1 advisory.
python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907)
python: DoS via inefficiency in IPv{4,6}Interface classes (CVE-2020-14422)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable Network Security, Inc.
##
# The descriptive text is (C) Scientific Linux.
#
include('compat.inc');
if (description)
{
script_id(142819);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2020/11/24");
script_cve_id("CVE-2019-20907", "CVE-2020-14422");
script_xref(name:"RHSA", value:"RHSA-2020:5010");
script_name(english:"Scientific Linux Security Update : python3 on SL7.x i686/x86_64 (2020:5010)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(attribute:"synopsis", value:
"The remote Scientific Linux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in
the SLSA-2020:5010-1 advisory.
- python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907)
- python: DoS via inefficiency in IPv{4,6}Interface classes (CVE-2020-14422)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://www.scientificlinux.org/category/sl-errata/slsa-20205010-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:N/I:N/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-2019-20907");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/18");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3-idle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3-test");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python3-tkinter");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Scientific Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item('Host/RedHat/release');
if (isnull(release) || 'Scientific Linux' >!< release) audit(AUDIT_OS_NOT, 'Scientific Linux');
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Scientific Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Scientific Linux 7.x', 'Scientific Linux ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Scientific Linux', cpu);
pkgs = [
{'reference':'python3-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'},
{'reference':'python3-debug-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-debug-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'},
{'reference':'python3-debuginfo-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-debuginfo-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'},
{'reference':'python3-devel-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-devel-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'},
{'reference':'python3-idle-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-idle-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'},
{'reference':'python3-libs-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-libs-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'},
{'reference':'python3-test-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-test-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'},
{'reference':'python3-tkinter-3.6.8-18.el7', 'cpu':'i686', 'release':'SL7'},
{'reference':'python3-tkinter-3.6.8-18.el7', 'cpu':'x86_64', 'release':'SL7'}
];
flag = 0;
foreach package_array ( pkgs ) {
reference = NULL;
release = NULL;
sp = NULL;
cpu = NULL;
el_string = NULL;
rpm_spec_vers_cmp = NULL;
epoch = NULL;
allowmaj = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (reference && release) {
if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'python3 / python3-debug / python3-debuginfo / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | cpe:/o:fermilab:scientific_linux | |
fermilab | scientific_linux | python3 | p-cpe:/a:fermilab:scientific_linux:python3 |
fermilab | scientific_linux | python3-debug | p-cpe:/a:fermilab:scientific_linux:python3-debug |
fermilab | scientific_linux | python3-debuginfo | p-cpe:/a:fermilab:scientific_linux:python3-debuginfo |
fermilab | scientific_linux | python3-devel | p-cpe:/a:fermilab:scientific_linux:python3-devel |
fermilab | scientific_linux | python3-idle | p-cpe:/a:fermilab:scientific_linux:python3-idle |
fermilab | scientific_linux | python3-libs | p-cpe:/a:fermilab:scientific_linux:python3-libs |
fermilab | scientific_linux | python3-test | p-cpe:/a:fermilab:scientific_linux:python3-test |
fermilab | scientific_linux | python3-tkinter | p-cpe:/a:fermilab:scientific_linux:python3-tkinter |