Debian DLA-3592-1 : jetty9 - LTS security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3592. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(182409);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/21");

  script_cve_id(
    "CVE-2023-26048",
    "CVE-2023-26049",
    "CVE-2023-36479",
    "CVE-2023-40167"
  );
  script_xref(name:"IAVB", value:"2023-B-0082-S");

  script_name(english:"Debian DLA-3592-1 : jetty9 - LTS security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-3592 advisory.

  - Jetty is a java based web server and servlet engine. In affected versions servlets with multipart support
    (e.g. annotated with `@MultipartConfig`) that call `HttpServletRequest.getParameter()` or
    `HttpServletRequest.getParts()` may cause `OutOfMemoryError` when the client sends a multipart request
    with a part that has a name but no filename and very large content. This happens even with the default
    settings of `fileSizeThreshold=0` which should stream the whole part content to disk. An attacker client
    may send a large multipart request and cause the server to throw `OutOfMemoryError`. However, the server
    may be able to recover after the `OutOfMemoryError` and continue its service -- although it may take some
    time. This issue has been patched in versions 9.4.51, 10.0.14, and 11.0.14. Users are advised to upgrade.
    Users unable to upgrade may set the multipart parameter `maxRequestSize` which must be set to a non-
    negative value, so the whole multipart content is limited (although still read into memory).
    (CVE-2023-26048)

  - Jetty is a java based web server and servlet engine. Nonstandard cookie parsing in Jetty may allow an
    attacker to smuggle cookies within other cookies, or otherwise perform unintended behavior by tampering
    with the cookie parsing mechanism. If Jetty sees a cookie VALUE that starts with `` (double quote), it
    will continue to read the cookie string until it sees a closing quote -- even if a semicolon is
    encountered. So, a cookie header such as: `DISPLAY_LANGUAGE=b; JSESSIONID=1337; c=d` will be parsed as
    one cookie, with the name DISPLAY_LANGUAGE and a value of b; JSESSIONID=1337; c=d instead of 3 separate
    cookies. This has security implications because if, say, JSESSIONID is an HttpOnly cookie, and the
    DISPLAY_LANGUAGE cookie value is rendered on the page, an attacker can smuggle the JSESSIONID cookie into
    the DISPLAY_LANGUAGE cookie and thereby exfiltrate it. This is significant when an intermediary is
    enacting some policy based on cookies, so a smuggled cookie can bypass that policy yet still be seen by
    the Jetty server or its logging system. This issue has been addressed in versions 9.4.51, 10.0.14,
    11.0.14, and 12.0.0.beta0 and users are advised to upgrade. There are no known workarounds for this issue.
    (CVE-2023-26049)

  - Eclipse Jetty Canonical Repository is the canonical repository for the Jetty project. Users of the
    CgiServlet with a very specific command structure may have the wrong command executed. If a user sends a
    request to a org.eclipse.jetty.servlets.CGI Servlet for a binary with a space in its name, the servlet
    will escape the command by wrapping it in quotation marks. This wrapped command, plus an optional command
    prefix, will then be executed through a call to Runtime.exec. If the original binary name provided by the
    user contains a quotation mark followed by a space, the resulting command line will contain multiple
    tokens instead of one. This issue was patched in version 9.4.52, 10.0.16, 11.0.16 and 12.0.0-beta2.
    (CVE-2023-36479)

  - Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52, 10.0.16, 11.0.16, and
    12.0.1, Jetty accepts the `+` character proceeding the content-length value in a HTTP/1 header field. This
    is more permissive than allowed by the RFC and other servers routinely reject such requests with 400
    responses. There is no known exploit scenario, but it is conceivable that request smuggling could result
    if jetty is used in combination with a server that does not close the connection after sending such a 400
    response. Versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1 contain a patch for this issue. There is no
    workaround as there is no known exploit scenario. (CVE-2023-40167)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/jetty9");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2023/dla-3592");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-26048");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-26049");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-36479");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-40167");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/jetty9");
  script_set_attribute(attribute:"solution", value:
"Upgrade the jetty9 packages.

For Debian 10 buster, these problems have been fixed in version 9.4.16-0+deb10u3.");
  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:POC/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:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-40167");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/04/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:jetty9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libjetty9-extra-java");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libjetty9-java");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include('debian_package.inc');

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

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '10.0', 'prefix': 'jetty9', 'reference': '9.4.16-0+deb10u3'},
    {'release': '10.0', 'prefix': 'libjetty9-extra-java', 'reference': '9.4.16-0+deb10u3'},
    {'release': '10.0', 'prefix': 'libjetty9-java', 'reference': '9.4.16-0+deb10u3'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'jetty9 / libjetty9-extra-java / libjetty9-java');
}