Synology DiskStation Manager (DSM) 7.x Multiple Vulnerabilities (Synology-SA-22:23) - Unreliable Remote Version Check

# SPDX-FileCopyrightText: 2023 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

CPE = "cpe:/a:synology:diskstation_manager";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.170293");
  script_version("2024-12-17T05:05:41+0000");
  script_tag(name:"last_modification", value:"2024-12-17 05:05:41 +0000 (Tue, 17 Dec 2024)");
  script_tag(name:"creation_date", value:"2023-01-19 13:55:18 +0000 (Thu, 19 Jan 2023)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-11-17 16:16:13 +0000 (Thu, 17 Nov 2022)");

  script_cve_id("CVE-2022-45188");

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

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

  script_name("Synology DiskStation Manager (DSM) 7.x Multiple Vulnerabilities (Synology-SA-22:23) - Unreliable Remote Version Check");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2023 Greenbone AG");
  script_family("General");
  script_dependencies("gb_synology_dsm_consolidation.nasl");
  script_mandatory_keys("synology/dsm/detected");

  script_tag(name:"summary", value:"Synology DiskStation Manager (DSM) is 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:"Multiple vulnerabilities reported by PWN2OWN TORONTO 2022 have
  been addressed.

  - Claroty Research was able to execute a chain of 3 bugs (2 missing authentication for
  critical function and an authentication bypass) attack against the Synology DiskStation DS920+

  - ASU SEFCOM was able to execute their OOB Write attack against the Synology DiskStation DS920+ to
  gain code execution");

  script_tag(name:"affected", value:"Synology DSM versions 7.0.x prior to 7.0.1-42218-6 and 7.1.x
  prior to 7.1.1-42962-3.");

  script_tag(name:"solution", value:"Update to version 7.0.1-42218-6, 7.1.1-42962-3 or later.");

  script_xref(name:"URL", value:"https://www.synology.com/en-global/security/advisory/Synology_SA_22_23");
  script_xref(name:"URL", value:"https://www.zerodayinitiative.com/blog/2022/12/5/pwn2own-toronto-2022-day-one-results");
  script_xref(name:"URL", value:"https://rushbnt.github.io/bug%20analysis/netatalk-0day/");
  script_xref(name:"URL", value:"https://netatalk.io/3.1/ReleaseNotes3.1.15");

  exit(0);
}

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

if (!version = get_app_version(cpe: CPE, nofork: TRUE))
  exit(0);

# nb: 6.x and earlier is checked by VT 1.3.6.1.4.1.25623.1.0.170271
if (version !~ "^7\.[01]")
  exit(0);

# 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\.0\.1-42218" && (revcomp(a: version, b: "7.0.1-42218-6") < 0)) {
  report = report_fixed_ver(installed_version: version, fixed_version: "7.0.1-42218-6");
  security_message(port: 0, data: report);
  exit(0);
}

if (version =~ "^7\.1\.1-42962" && (revcomp(a: version, b: "7.1.1-42962-3") < 0)) {
  report = report_fixed_ver(installed_version: version, fixed_version: "7.1.1-42962-3");
  security_message(port: 0, data: report);
  exit(0);
}

# nb: This is checked by VT 1.3.6.1.4.1.25623.1.0.170273
if ((version =~ "^7\.0" && (revcomp(a: version, b: "7.0.1-42218") < 0)) ||
    (version =~ "^7\.1" && (revcomp(a: version, b: "7.1.1-42962") < 0)))
  exit(0);

exit(99);