ChaSen Buffer Overflow Vulnerability - Linux

# SPDX-FileCopyrightText: 2011 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("1.3.6.1.4.1.25623.1.0.802344");
  script_version("2024-02-15T05:05:39+0000");
  script_cve_id("CVE-2011-4000");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2024-02-15 05:05:39 +0000 (Thu, 15 Feb 2024)");
  script_tag(name:"creation_date", value:"2011-11-11 14:20:07 +0530 (Fri, 11 Nov 2011)");
  script_name("ChaSen Buffer Overflow Vulnerability - Linux");
  script_xref(name:"URL", value:"http://jvn.jp/en/jp/JVN16901583/index.html");
  script_xref(name:"URL", value:"http://jvndb.jvn.jp/en/contents/2011/JVNDB-2011-000099.html");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Buffer overflow");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("login/SSH/success");
  script_exclude_keys("ssh/no_linux_shell");

  script_tag(name:"impact", value:"Successful exploitation allows remote attackers to cause a buffer overflow
  or execute arbitrary code.");

  script_tag(name:"affected", value:"ChaSen Version 2.4.x.");

  script_tag(name:"insight", value:"The flaw is due to an error when reading user-supplied input string,
  which allows attackers to execute arbitrary code via a crafted string.");

  script_tag(name:"solution", value:"Use ChaSen Version 2.3.3.");

  script_tag(name:"summary", value:"ChaSen Software is prone to a buffer overflow vulnerability.");

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

  exit(0);
}

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

sock = ssh_login_or_reuse_connection();
if(!sock)
  exit(0);

chaName = ssh_find_file(file_name:"/chasen-config$", useregex:TRUE, sock:sock);

foreach binaryName(chaName) {

  binaryName = chomp(binaryName);
  if(!binaryName)
    continue;

  chaVer = ssh_get_bin_version(full_prog_name:binaryName, version_argv:"--version", ver_pattern:"[0-9.]{5,}", sock:sock);

  if(!isnull(chaVer[1])) {
    if(version_in_range(version:chaVer[1], test_version:"2.4.0", test_version2:"2.4.4")) {
      report = report_fixed_ver(installed_version:chaVer[1], fixed_version:"2.3.3 or a later 2.4 version");
      security_message(port:0, data:report);
      ssh_close_connection();
      exit(0);
    }
  }
}

ssh_close_connection();
exit(0);