Debian DLA-1028-1 : apache2 security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1028-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(101774);
  script_version("3.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2017-9788");

  script_name(english:"Debian DLA-1028-1 : apache2 security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Robert Swiecki discovered that the value placeholder in
[Proxy-]Authorization Digest headers were not initialized or reset
before or between successive key=value assignments in Apache 2's
mod_auth_digest module

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.

For Debian 7 'Wheezy', this issue has been fixed in apache2 version
2.2.22-13+deb7u10.

We recommend that you upgrade your apache2 packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2017/07/msg00020.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/apache2"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/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:L/PR:N/UI:N/S:U/C:H/I:N/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:debian:debian_linux:apache2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-mpm-event");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-mpm-itk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-mpm-prefork");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-mpm-worker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-prefork-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-suexec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-suexec-custom");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-threaded-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2.2-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache2.2-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/18");
  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:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"apache2", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-dbg", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-doc", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-mpm-event", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-mpm-itk", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-mpm-prefork", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-mpm-worker", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-prefork-dev", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-suexec", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-suexec-custom", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-threaded-dev", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2-utils", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2.2-bin", reference:"2.2.22-13+deb7u10")) flag++;
if (deb_check(release:"7.0", prefix:"apache2.2-common", reference:"2.2.22-13+deb7u10")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");