Synology DiskStation Manager Samba Out-of-bounds Read (CVE-2019-14907)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(502414);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/01");

  script_cve_id("CVE-2019-14907");

  script_name(english:"Synology DiskStation Manager Samba Out-of-bounds Read (CVE-2019-14907)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and
4.11.x before 4.11.5 have an issue where if it is set with log level
= 3 (or above) then the string obtained from the client, after a
failed character conversion, is printed. Such strings can be provided
during the NTLMSSP authentication exchange. In the Samba AD DC in
particular, this may cause a long-lived process(such as the RPC
server) to terminate. (In the file server case, the most likely
target, smbd, operates as process-per-client and so a crash there is
harmless).

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00055.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a0c43f85");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14907");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?26acda42");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?98c7310a");
  script_set_attribute(attribute:"see_also", value:"https://security.gentoo.org/glsa/202003-52");
  script_set_attribute(attribute:"see_also", value:"https://security.netapp.com/advisory/ntap-20200122-0001/");
  script_set_attribute(attribute:"see_also", value:"https://usn.ubuntu.com/4244-1/");
  script_set_attribute(attribute:"see_also", value:"https://www.samba.org/samba/security/CVE-2019-14907.html");
  script_set_attribute(attribute:"see_also", value:"https://www.synology.com/security/advisory/Synology_SA_20_01");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-14907");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(125);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/10/01");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:synology:diskstation_manager:6.2");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

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

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Synology");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Synology');

var asset = tenable_ot::assets::get(vendor:'Synology');

var vuln_cpes = {
    "cpe:/a:synology:diskstation_manager:6.2" :
        {"versionEndExcluding" : "6.2.4-25554", "versionStartIncluding" : "6.2", "family" : "DiskStation"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_NOTE);