SUSE SLES15 Security Update : openssl-1_0_0 (SUSE-SU-2020:3762-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:3762-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(144137);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id("CVE-2020-1971");
  script_xref(name:"IAVA", value:"2020-A-0566-S");
  script_xref(name:"CEA-ID", value:"CEA-2021-0004");
  script_xref(name:"CEA-ID", value:"CEA-2021-0025");

  script_name(english:"SUSE SLES15 Security Update : openssl-1_0_0 (SUSE-SU-2020:3762-1)");

  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 openssl-1_0_0 fixes the following issues :

CVE-2020-1971: Fixed a NULL pointer dereference in EDIPARTYNAME
(bsc#1179491).

Initialized dh->nid to NID_undef in DH_new_method() (bsc#1177673).

Fixed a test failure in apache_ssl in fips mode (bsc#1177793).

Renamed BN_get_rfc3526_prime_* functions back to get_rfc3526_prime_*
(bsc#1177575).

Restored private key check in EC_KEY_check_key (bsc#1177479).

Added shared secret KAT to FIPS DH selftest (bsc#1176029).

Included ECDH/DH Requirements from SP800-56Arev3 (bsc#1176029).

Used SHA-2 in the RSA pairwise consistency check (bsc#1155346)

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=1155346");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1176029");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1177479");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1177575");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1177673");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1177793");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1179491");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-1971/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20203762-1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4dcb01ab");
  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 Server for SAP 15 :

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2020-3762=1

SUSE Linux Enterprise Server 15-LTSS :

zypper in -t patch SUSE-SLE-Product-SLES-15-2020-3762=1

SUSE Linux Enterprise Module for Legacy Software 15-SP3 :

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP3-2020-3762=1

SUSE Linux Enterprise Module for Legacy Software 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP2-2020-3762=1

SUSE Linux Enterprise Module for Legacy Software 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP1-2020-3762=1

SUSE Enterprise Storage 6 :

zypper in -t patch SUSE-Storage-6-2020-3762=1");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:H/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-2020-1971");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/12/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/12/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/12/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl-1_0_0-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl10-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl-1_0_0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl-1_0_0-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  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_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2022 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/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:"^(0|1|2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0/1/2/3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", reference:"libopenssl-1_0_0-devel-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libopenssl1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"libopenssl1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openssl-1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openssl-1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"openssl-1_0_0-debugsource-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"libopenssl-1_0_0-devel-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"libopenssl10-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"libopenssl10-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"libopenssl1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"libopenssl1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"openssl-1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"openssl-1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"3", reference:"openssl-1_0_0-debugsource-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"libopenssl-1_0_0-devel-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"libopenssl1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"libopenssl1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"openssl-1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"openssl-1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"openssl-1_0_0-debugsource-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"libopenssl-1_0_0-devel-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"libopenssl1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"libopenssl1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"openssl-1_0_0-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"openssl-1_0_0-debuginfo-1.0.2p-3.34.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"openssl-1_0_0-debugsource-1.0.2p-3.34.1")) 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, "openssl-1_0_0");
}