SUSE SLES12 Security Update : openssl (SUSE-SU-2018:2492-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:2492-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(112145);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/13");

  script_cve_id("CVE-2018-0737");

  script_name(english:"SUSE SLES12 Security Update : openssl (SUSE-SU-2018:2492-1)");
  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 openssl fixes the following security issue :

  - CVE-2018-0737: The RSA Key generation algorithm has been
    shown to be vulnerable to a cache timing side channel
    attack. An attacker with sufficient access to mount
    cache timing attacks during the RSA key generation
    process could have recovered the private key
    (bsc#1089039).

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=1089039"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-0737/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20182492-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d7f4be90"
  );
  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 12-SP1:zypper in -t patch
SUSE-SLE-SAP-12-SP1-2018-1752=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2018-1752=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:libopenssl1_0_0-hmac");
  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-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/28");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 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:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "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 == "SLES12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"libopenssl1_0_0-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libopenssl1_0_0-32bit-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libopenssl1_0_0-debuginfo-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libopenssl1_0_0-debuginfo-32bit-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libopenssl1_0_0-hmac-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"libopenssl1_0_0-hmac-32bit-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"openssl-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"openssl-debuginfo-1.0.1i-54.17.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"openssl-debugsource-1.0.1i-54.17.1")) 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");
}