SUSE SLED15 / SLES15 Security Update : apache2 (SUSE-SU-2020:1126-1)

#%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-2020:1126-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(136078);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/11");

  script_cve_id("CVE-2020-1927", "CVE-2020-1934", "CVE-2020-1938");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/03/17");
  script_xref(name:"CEA-ID", value:"CEA-2021-0025");
  script_xref(name:"CEA-ID", value:"CEA-2020-0021");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : apache2 (SUSE-SU-2020:1126-1)");

  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 apache2 fixes the following issues :

CVE-2020-1934: mod_proxy_ftp may use uninitialized memory when
proxying to a malicious FTP server (bsc#1168404).

CVE-2020-1927: mod_rewrite configurations vulnerable to open redirect
(bsc#1168407).

CVE-2020-1938: mod_proxy_ajp: Add 'secret' parameter to proxy workers
to implement legacy AJP13 authentication (bsc#1169066).

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=1168404");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1168407");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1169066");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-1927/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-1934/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-1938/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20201126-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5c0c9460");
  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-15-2020-1126=1

SUSE Linux Enterprise Server 15-LTSS:zypper in -t patch
SUSE-SLE-Product-SLES-15-2020-1126=1

SUSE Linux Enterprise Module for Server Applications 15-SP1:zypper in
-t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-1126=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools
15-SP1:zypper in -t patch
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-1126=1

SUSE Linux Enterprise High Performance Computing 15-LTSS:zypper in -t
patch SUSE-SLE-Product-HPC-15-2020-1126=1

SUSE Linux Enterprise High Performance Computing 15-ESPOS:zypper in -t
patch SUSE-SLE-Product-HPC-15-2020-1126=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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1938");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/29");

  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-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-event");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:apache2-event-debuginfo");
  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:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2023 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:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / 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)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0/1", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-debugsource-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-devel-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-event-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-event-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-example-pages-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-prefork-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-prefork-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-utils-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-utils-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-worker-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"apache2-worker-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-debugsource-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-devel-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-prefork-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-prefork-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-utils-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-utils-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-worker-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"s390x", reference:"apache2-worker-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-debugsource-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-event-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-event-debuginfo-2.4.33-3.30.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"apache2-example-pages-2.4.33-3.30.1")) 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, "apache2");
}