SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:2815-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:2815-1.
# The text itself is copyright (C) SUSE.
#

include('deprecated_nasl_level.inc');
include("compat.inc");

if (description)
{
  script_id(117695);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/03/25");

  script_cve_id("CVE-2016-4975", "CVE-2016-8743");

  script_name(english:"SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:2815-1)");
  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 apache2 fixes the following issues :

Security issues fixed :

CVE-2016-8743: Fixed liberal whitespace interpretation accepted from
requests and sent in response lines and headers. Accepting these
different behaviors represented a security concern when httpd
participates in any chain of proxies or interacts with back-end
application servers, either through mod_proxy or using conventional
CGI mechanisms, and may result in request smuggling, response
splitting and cache pollution. (bsc#1016715)

CVE-2016-4975: Fixed possible CRLF injection allowing HTTP response
splitting attacks for sites which use mod_userdir. This issue was
mitigated by changes which prohibit CR or LF injection into the
'Location' or other outbound header key or value. (bsc#1104826)

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=1016715"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1104826"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-4975/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-8743/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20182815-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8b8669e5"
  );
  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 OpenStack Cloud 7:zypper in -t patch
SUSE-OpenStack-Cloud-7-2018-1970=1

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2018-1970=1

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch
SUSE-SLE-SAP-12-SP2-2018-1970=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2018-1970=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2018-1970=1

SUSE Enterprise Storage 4:zypper in -t patch
SUSE-Storage-4-2018-1970=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-8743");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-example-pages");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-prefork");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-prefork-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-utils-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-worker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-worker-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/25");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2022 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:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-debuginfo-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-debugsource-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-example-pages-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-prefork-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-prefork-debuginfo-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-utils-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-utils-debuginfo-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-worker-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"apache2-worker-debuginfo-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-debuginfo-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-debugsource-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-example-pages-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-prefork-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-prefork-debuginfo-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-utils-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-utils-debuginfo-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-worker-2.4.23-29.24.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"apache2-worker-debuginfo-2.4.23-29.24.1")) 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, "apache2");
}