Erlang/OTP (Erlang OTP) TLS Occasional Improper ROOT Certificate Validation Vulnerability (GHSA-3rgm-p3c6-g54m) - Linux

# SPDX-FileCopyrightText: 2025 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:erlang:erlang%2fotp";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.119105");
  script_version("2025-09-16T05:38:45+0000");
  script_tag(name:"last_modification", value:"2025-09-16 05:38:45 +0000 (Tue, 16 Sep 2025)");
  script_tag(name:"creation_date", value:"2025-09-15 13:03:57 +0000 (Mon, 15 Sep 2025)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-01-22 01:54:55 +0000 (Fri, 22 Jan 2021)");
  script_cve_id("CVE-2020-35733");
  script_name("Erlang/OTP (Erlang OTP) TLS Occasional Improper ROOT Certificate Validation Vulnerability (GHSA-3rgm-p3c6-g54m) - Linux");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2025 Greenbone AG");
  script_family("General");
  script_dependencies("gb_erlang_otp_ssh_banner_detect.nasl", "os_detection.nasl");
  script_mandatory_keys("erlang/otp/detected", "Host/runs_unixoide");

  script_xref(name:"URL", value:"https://github.com/erlang/otp/security/advisories/GHSA-3rgm-p3c6-g54m");

  script_tag(name:"summary", value:"Erlang/OTP (Erlang OTP) is prone to a TLS occasional improper
  ROOT certificate validation vulnerability in the ssl component.");

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

  script_tag(name:"impact", value:"This vulnerability could enable a man in the middle attack using
  a fake chain to a known trusted ROOT certificate.");

  script_tag(name:"affected", value:"Erlang/OTP (Erlang OTP) versions starting from 23.2 and prior
  to 23.2.2.");

  script_tag(name:"solution", value:"Update to version 23.2.2 or later.");

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

  exit(0);
}

include("version_func.inc");
include("host_details.inc");

if( isnull( port = get_app_port( cpe:CPE ) ) )
  exit( 0 );

if( ! infos = get_app_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

version = infos["version"];
location = infos["location"];

if( version_in_range_exclusive( version:version, test_version_lo:"23.2", test_version_up:"23.2.2" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"23.2.2", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );