SUSE SLES12 Security Update : Recommended update for apache2 (SUSE-SU-2017:2449-1)

#%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-2017:2449-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(103215);
  script_version("3.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2017-3167", "CVE-2017-3169", "CVE-2017-7679", "CVE-2017-9788");

  script_name(english:"SUSE SLES12 Security Update : Recommended update for apache2 (SUSE-SU-2017:2449-1)");
  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 provides the following fixes: Security issues
fixed :

  - CVE-2017-9788: The value placeholder in
    [Proxy-]Authorization headers of type 'Digest' was not
    initialized or reset before or between successive
    key=value assignments by mod_auth_digest. Providing an
    initial key with no '=' assignment could reflect the
    stale value of uninitialized pool memory used by the
    prior request, leading to leakage of potentially
    confidential information, and a segfault in other cases
    resulting in denial of service. (bsc#1048576)

  - CVE-2017-7679: mod_mime could have read one byte past
    the end of a buffer when sending a malicious
    Content-Type response header leading to information leak
    or crash. (bsc#1045060)

  - CVE-2017-3169: mod_ssl may have dereferenced a NULL
    pointer when third-party modules call
    ap_hook_process_connection() during an HTTP request to
    an HTTPS port leading to crash. (bsc#1045062)

  - CVE-2017-3167: Use of the ap_get_basic_auth_pw() by
    third-party modules outside of the authentication phase
    may have lead to authentication requirements being
    bypassed. (bsc#1045065) Non-security issues fixed :

  - Re-order cipher suites to keep exclusion list at the
    end. (bsc#1043484, bsc#1043607)

  - Remove /usr/bin/http2 link only during apache2 package
    uninstall, not upgrade. (bsc#1041830)

  - In gensslcert, use hostname when fqdn is too long.
    (bsc#1035829)

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=1035829"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1041830"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1043484"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1043607"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1045060"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1045062"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1045065"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1048576"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-3167/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-3169/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-7679/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-9788/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20172449-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d5257e3c"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE OpenStack Cloud 6:zypper in -t patch
SUSE-OpenStack-Cloud-6-2017-1510=1

SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch
SUSE-SLE-SAP-12-SP1-2017-1510=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2017-1510=1

To bring your system up-to-date, use 'zypper patch'."
  );
  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:U/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:U/RL:O/RC:C");
  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:"2017/06/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/09/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/14");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 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:"apache2-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-debuginfo-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-debugsource-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-example-pages-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-prefork-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-prefork-debuginfo-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-utils-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-utils-debuginfo-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-worker-2.4.16-20.10.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"apache2-worker-debuginfo-2.4.16-20.10.1")) 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, "Recommended update for apache2");
}