Synology DiskStation Manager (DSM) < 7.1.1-42962-2 Multiple Vulnerabilities (Synology-SA-22:17) - Unreliable Remote Version Check

# SPDX-FileCopyrightText: 2022 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.170292");
  script_version("2024-03-15T15:36:48+0000");
  script_tag(name:"last_modification", value:"2024-03-15 15:36:48 +0000 (Fri, 15 Mar 2024)");
  # nb: This was initially a single VT but had to be split into two VTs in 2023. The original date
  # for both (the new and the old one) has been kept in this case.
  script_tag(name:"creation_date", value:"2022-11-14 09:47:24 +0000 (Mon, 14 Nov 2022)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-10-21 15:54:00 +0000 (Fri, 21 Oct 2022)");

  script_cve_id("CVE-2022-27624", "CVE-2022-27625", "CVE-2022-27626", "CVE-2022-3576");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("Synology DiskStation Manager (DSM) < 7.1.1-42962-2 Multiple Vulnerabilities (Synology-SA-22:17) - Unreliable Remote Version Check");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("General");
  script_dependencies("gb_synology_dsm_consolidation.nasl");
  script_mandatory_keys("synology/dsm/detected");

  script_tag(name:"summary", value:"Multiple Synology NAS devices running DiskStation Manager (DSM)
  are prone to multiple vulnerabilities.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The following vulnerabilities exist / mitigation was done:

  - CVE-2022-27624: A vulnerability regarding improper restriction of operations within the bounds of
  a memory buffer is found in the packet decryption functionality of Out-of-Band (OOB) Management.
  This allows remote attackers to execute arbitrary commands via unspecified vectors.

  - CVE-2022-27625: A vulnerability regarding improper restriction of operations within the bounds of
  a memory buffer is found in the message processing functionality of Out-of-Band (OOB) Management.
  This allows remote attackers to execute arbitrary commands via unspecified vectors.

  - CVE-2022-27626: A vulnerability regarding concurrent execution using shared resource with
  improper synchronization ('Race Condition') is found in the session processing functionality of
  Out-of-Band (OOB) Management. This allows remote attackers to execute arbitrary commands via
  unspecified vectors.

  - CVE-2022-3576: A vulnerability regarding out-of-bounds read is found in the session processing
  functionality of Out-of-Band (OOB) Management. This allows remote attackers to obtain sensitive
  information via unspecified vectors.");

  script_tag(name:"affected", value:"Synology DS3622xs+, FS3410 and HD6500 with firmware versions
  prior to 7.1.1-42962-2.");

  script_tag(name:"solution", value:"Update to firmware version 7.1.1-42962-2 or later.");

  script_xref(name:"URL", value:"https://www.synology.com/en-global/security/advisory/Synology_SA_22_17");

  exit(0);
}

include("host_details.inc");
include("revisions-lib.inc");
include("version_func.inc");

cpe_list = make_list("cpe:/o:synology:ds3622xs+_firmware",
                     "cpe:/o:synology:fs3410_firmware",
                     "cpe:/o:synology:hd6500_firmware");

if (!infos = get_app_version_from_list(cpe_list: cpe_list, nofork: TRUE))
  exit(0);

version = infos["version"];

# nb: The patch level version cannot be obtained so when the fix is on a patch level version (e.g.
# 7.2.1-69057-2 and not 7.2.1-69057), there will be 2 VTs with different qod_type.
if (version =~ "^7\.1\.1-42962" && (revcomp(a: version, b: "7.1.1-42962-2") < 0)) {
  report = report_fixed_ver(installed_version: version, fixed_version: "7.1.1-42962-2");
  security_message(port: 0, data: report);
  exit(0);
}

# nb: This is checked by VT 1.3.6.1.4.1.25623.1.0.170224
if (revcomp(a: version, b: "7.1.1-42962") < 0)
  exit(0);

exit(99);