SUSE SLES15 Security Update : rmt-server (SUSE-SU-2020:3160-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:3160-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(143623);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/12/17");

  script_cve_id("CVE-2019-16770", "CVE-2019-5418", "CVE-2019-5419", "CVE-2019-5420", "CVE-2020-11076", "CVE-2020-11077", "CVE-2020-15169", "CVE-2020-5247", "CVE-2020-5249", "CVE-2020-5267", "CVE-2020-8164", "CVE-2020-8165", "CVE-2020-8166", "CVE-2020-8167", "CVE-2020-8184", "CVE-2020-8185");

  script_name(english:"SUSE SLES15 Security Update : rmt-server (SUSE-SU-2020:3160-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description",
    value:
"This update for rmt-server fixes the following issues :

Version 2.6.5

Solved potential bug of SCC repository URLs changing over time. RMT
now self heals by removing the previous invalid repository and
creating the correct one.

Version 2.6.4

Add web server settings to /etc/rmt.conf: Now it's possible to
configure the minimum and maximum threads count as well the number of
web server workers to be booted through /etc/rmt.conf.

Version 2.6.3

Instead of using an MD5 of URLs for custom repository friendly_ids,
RMT now builds an ID from the name.

Version 2.6.2

Fix RMT file caching based on timestamps: Previously, RMT sent GET
requests with the header 'If-Modified-Since' to a repository server
and if the response had a 304 (Not Modified), it would copy a file
from the local cache instead of downloading. However, if the local
file timestamp accidentally changed to a date newer than the one on
the repository server, RMT would have an outdated file, which caused
some errors. Now, RMT makes HEAD requests to the repositories servers
and inspect the 'Last-Modified' header to decide whether to download a
file or copy it from cache, by comparing the equalness of timestamps.

Version 2.6.1

Fixed an issue where relative paths supplied to `rmt-cli import repos`
caused the command to fail.

Version 2.6.0

Friendlier IDs for custom repositories: In an effort to simplify the
handling of SCC and custom repositories, RMT now has friendly IDs. For
SCC repositories, it's the same SCC ID as before. For custom
repositories, it can either be user provided or RMT generated (MD5 of
the provided URL). Benefits :

  - `rmt-cli mirror repositories` now works for custom
    repositories.

  - Custom repository IDs can be the same across RMT
    instances.

  - No more confusing 'SCC ID' vs 'ID' in `rmt-cli` output.
    Deprecation Warnings :

  - RMT now uses a different ID for custom repositories than
    before. RMT still supports that old ID, but it's
    recommended to start using the new ID to ensure future
    compatibility.

Version 2.5.20

Updated rails from 6.0.3.2 to 6.0.3.3 :

  - actionview (CVE-2020-15169)

Version 2.5.19

RMT now has the ability to remove local systems with the command
`rmt-cli systems remove`.

Version 2.5.18

Fixed exit code for `rmt-cli mirror` and its subcommands. Now it exits
with 1 whenever an error occurs during mirroring

Improved message logging for `rtm-cli mirror`. Instead of logging an
error when it occurs, the command summarize all errors at the end of
execution. Now log messages have colors to better identify
failure/success.

Version 2.5.17

RMT no longer provides the installer updates repository to systems via
its zypper service. This repository is used during the installation
process, as it provides an up-to-date installation experience, but it
has no use on an already installed system.

Version 2.5.16

Updated RMT's rails and puma dependencies.

  - puma (CVE-2020-11076, CVE-2020-11077, CVE-2020-5249,
    CVE-2020-5247 CVE-2019-16770)

  - actionpack (CVE-2020-8185, CVE-2020-8164, CVE-2020-8166)

  - actionview (CVE-2020-8167, CVE-2020-5267, CVE-2019-5418,
    CVE-2019-5419)

  - activesupport (CVE-2020-8165)

  - railties (CVE-2019-5420)

Version 2.5.15

RMT now checks if repositories are fully mirrored during the
activation process. Previously, RMT only checked if the repositories
were enabled to be mirrored, but not that they were actually mirrored.
In this case, RMTs were not able to provide the repository data which
systems assumed it had.

Version 2.5.14

Enable 'Installer-Updates' repositories by default

Fixed deprecation warning when thor encountered an error. Also,
instead of returning 0 for thor errors, rmt-cli will return 1 instead.

Version 2.5.13

Added `rmt-cli repos clean` command to remove locally mirrored files
of repositories which are not marked to be mirrored.

Previously, RMT didn't track deduplicated files in its database. Now,
to accommodate `rmt-cli repos clean`, RMT will track all mirrored
files.

Move the nginx reload to the configuration package which contain nginx
config files, don't reload nginx unconditionally from main package.

Version 2.5.12

Update rack to version 2.2.3 (CVE-2020-8184: bsc#1173351)

Update Rails to version 5.2.4.3 :

  - actionpack (CVE-2020-8164: bsc#1172177)

  - actionpack (CVE-2020-8166: bsc#1172182)

  - activesupport (CVE-2020-8165: bsc#1172186)

  - actionview (CVE-2020-8167: bsc#1172184)

Version 2.5.11

rmt-server-pubcloud :

  - SLES11 EOL

  - Extension activation verification based on the available
    subscriptions

  - Added a manual instance verification script

Version 2.5.10

Support rmt-server to run with Ruby 2.7 (Factory/Tumbleweed) :

  - Bump gem 'config' version from 1.7.2 to 2.2.1 to fix
    incompatibility Ruby 2.7 OpenStruct class;

  - Bump gem 'typhoeus' version from 1.3.1 to 1.4.0 in order
    to also bump gem 'ethon' version, which caused a
    'rb_safe_level' warning on Ruby 2.7;

  - Fix 'last arg as keyword arg' Ruby 2.7 warning on source
    code;

  - Disable 'deprecated' warnings from Ruby 2.7; Rails 5.1
    generates a lot of warnings with Ruby 2.7, mainly due to
    'capturing the given block with Proc.new', which is
    deprecated;

  - Improve RPM spec to consider only the distribution
    default Ruby version configured in OBS;

  - Improve RPM spec to remove Ruby 2.7 warnings regarding
    'bundler.

Move nginx/vhosts.d directory to correct sub-package. They are needed
together with nginx, not rmt-server.

Fix dependencies especially for containerized usage :

  - mariadb and nginx are not hard requires, could run on
    another host

Fix generic dependencies :

  - systemd ordering was missing

  - shadow is required for pre-install

Version 2.5.9

rmt-server-pubcloud: enforce strict authentication

Version 2.5.8

Use repomd_parser gem to remove repository metadata parsing code.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1172177"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1172182"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1172184"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1172186"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1173351"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-16770/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-5418/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-5419/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-5420/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11076/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-11077/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-15169/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-5247/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-5249/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-5267/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-8164/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-8165/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-8166/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-8167/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-8184/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2020-8185/"
  );
  # https://www.suse.com/support/update/announcement/2020/suse-su-20203160-1
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e5e6b911"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Module for Server Applications 15-SP1 :

zypper in -t patch
SUSE-SLE-Module-Server-Applications-15-SP1-2020-3160=1

SUSE Linux Enterprise Module for Public Cloud 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP1-2020-3160=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-8165");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"d2_elliot_name", value:"Rails File Disclosure");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Ruby On Rails DoubleTap Development Mode secret_key_base Vulnerability');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:rmt-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:rmt-server-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:rmt-server-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/11/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/12/09");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES15", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", reference:"rmt-server-2.6.5-3.18.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"rmt-server-config-2.6.5-3.18.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"rmt-server-debuginfo-2.6.5-3.18.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rmt-server");
}