ISC BIND Control Channel Denial of Service Vulnerability - Linux

# 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:isc:bind";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.810977");
  script_version("2023-07-25T05:05:58+0000");
  script_cve_id("CVE-2017-3138");
  script_tag(name:"cvss_base", value:"3.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:N/I:N/A:P");
  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-09 23:27:00 +0000 (Wed, 09 Oct 2019)");
  script_tag(name:"creation_date", value:"2017-05-23 11:40:43 +0530 (Tue, 23 May 2017)");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_name("ISC BIND Control Channel Denial of Service Vulnerability - Linux");

  script_tag(name:"summary", value:"ISC BIND is prone to a denial of service vulnerability.");

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

  script_tag(name:"insight", value:"The flaw exists due to a feature in named
  which allows operators to issue commands to a running server by communicating
  with the server process over a control channel, using a utility program such
  as rndc.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to cause a denial of service (assertion failure and daemon exit) via
  null command string.");

  script_tag(name:"affected", value:"ISC BIND 9.9.9 through 9.9.9-P7, 9.9.10b1
  through 9.9.10rc2, 9.10.4 through 9.10.4-P7, 9.10.5b1 through 9.10.5rc2,
  9.11.0 through 9.11.0-P4, 9.11.1b1 through 9.11.1rc2, 9.9.9-S1 through
  9.9.9-S9.");

  script_tag(name:"solution", value:"Update to ISC BIND version 9.9.9-P8 or
  9.10.4-P8 or 9.11.0-P5 or 9.9.9-S10 or 9.9.10rc3 or 9.10.5rc3 or 9.11.1rc3
  or later.");

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

  script_xref(name:"URL", value:"https://kb.isc.org/docs/aa-01471");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/97657");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_isc_bind_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("isc/bind/detected", "Host/runs_unixoide");
  exit(0);
}

include("version_func.inc");
include("host_details.inc");
include("revisions-lib.inc");

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

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

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

if(version =~ "^9\.9") {
  if (version =~ "^9\.9\.9" && revcomp(a: version, b: "9.9.9p8") < 0){
      fix = "9.9.9-P8";
    }

  else if((revcomp(a: version, b: "9.9.10b1") >= 0) && (revcomp(a: version, b: "9.9.10rc3") < 0)){
    fix = "9.9.10rc3";
  }

  else if((revcomp(a: version, b: "9.10.4") >= 0) && (revcomp(a: version, b: "9.10.4p8") < 0)){
    fix = "9.10.4-P8";
  }

  else if((revcomp(a: version, b: "9.10.5b1") >= 0) && (revcomp(a: version, b: "9.10.5rc3") < 0)){
    fix = "9.10.5-rc3";
  }

  else if((revcomp(a: version, b: "9.11.0") >= 0) && (revcomp(a: version, b: "9.11.0p5") < 0)){
    fix = "9.11.0-P5";
  }

  else if((revcomp(a: version, b: "9.11.1b1") >= 0) && (revcomp(a: version, b: "9.11.1rc3") < 0)){
    fix = "9.10.5-rc3";
  }

  else if((revcomp(a: version, b: "9.9.9s1") >= 0) && (revcomp(a: version, b: "9.9.9s10") < 0)){
    fix = "9.9.9-S10";
  }
}

if(fix) {
  report = report_fixed_ver(installed_version:version, fixed_version:fix, install_path:location);
  security_message(data:report, port:port, proto:proto);
  exit(0);
}

exit(99);