Atlassian Bitbucket Directory Traversal Vulnerability (BSERV-8819)

# SPDX-FileCopyrightText: 2017 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:atlassian:bitbucket";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106760");
  script_version("2025-09-05T15:40:40+0000");
  script_tag(name:"last_modification", value:"2025-09-05 15:40:40 +0000 (Fri, 05 Sep 2025)");
  script_tag(name:"creation_date", value:"2017-04-18 11:24:13 +0200 (Tue, 18 Apr 2017)");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-10-12 18:28:00 +0000 (Fri, 12 Oct 2018)");

  script_cve_id("CVE-2016-4320");

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

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

  script_name("Atlassian Bitbucket Directory Traversal Vulnerability (BSERV-8819)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_atlassian_bitbucket_http_detect.nasl");
  script_mandatory_keys("atlassian/bitbucket/detected");

  script_tag(name:"summary", value:"Atlassian Bitbucket is prone to a directory traversal
  vulnerability.");

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

  script_tag(name:"insight", value:"Atlassian Bitbucket allows remote attackers to read the first
  line of an arbitrary file via a directory traversal attack on the pull requests resource.");

  script_tag(name:"affected", value:"Atlassian Bitbucket prior to version 4.7.1.");

  script_tag(name:"solution", value:"Update to version 4.7.1 or later.");

  script_xref(name:"URL", value:"https://jira.atlassian.com/browse/BSERV-8819");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/97515");

  exit(0);
}

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

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

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

if (version_is_less(version: version, test_version: "4.7.1")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "4.7.1");
  security_message(port: port, data: report);
  exit(0);
}

exit(99);