scp File Create/Overwrite

# SPDX-FileCopyrightText: 2003 Xue Yong Zhi
# 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("1.3.6.1.4.1.25623.1.0.11339");
  script_version("2023-08-03T05:05:16+0000");
  script_tag(name:"last_modification", value:"2023-08-03 05:05:16 +0000 (Thu, 03 Aug 2023)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/1742");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_cve_id("CVE-2000-0992");
  script_name("scp File Create/Overwrite");
  script_category(ACT_GATHER_INFO);
  script_tag(name:"qod_type", value:"remote_banner");
  script_copyright("Copyright (C) 2003 Xue Yong Zhi");
  script_family("Gain a shell remotely");
  script_dependencies("ssh_detect.nasl");
  script_require_ports("Services/ssh", 22);
  script_mandatory_keys("ssh/server_banner/available");

  script_tag(name:"solution", value:"Patch and new version are available from SSH/OpenSSH.");

  script_tag(name:"summary", value:"You are running OpenSSH 1.2.3, or 1.2.");

  script_tag(name:"insight", value:"This version has directory traversal vulnerability in scp, it allows
  a remote malicious scp server to overwrite arbitrary files via a .. (dot dot) attack.");

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

  exit(0);
}

include("ssh_func.inc");
include("misc_func.inc");
include("port_service_func.inc");

port = ssh_get_port(default:22);
banner = ssh_get_serverbanner(port:port);
if ( ! banner ) exit(0);

#Looking for OpenSSH product version number 1.2 and 1.2.3
if(ereg(pattern:".*openssh[-_](1\.2($|\.3|[^0-9])).*",string:banner, icase:TRUE))
  security_message(port:port);

if(ereg(pattern:".*ssh-.*-1\.2\.(1[0-4]|2[0-7])[^0-9]", string:banner, icase:TRUE))
  security_message(port:port);