Exim < 4.72 RC2 Multiple Vulnerabilities

# SPDX-FileCopyrightText: 2010 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:exim:exim";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.100663");
  script_version("2025-01-17T15:39:18+0000");
  script_tag(name:"last_modification", value:"2025-01-17 15:39:18 +0000 (Fri, 17 Jan 2025)");
  script_tag(name:"creation_date", value:"2010-06-03 13:39:07 +0200 (Thu, 03 Jun 2010)");
  script_cve_id("CVE-2010-2024", "CVE-2010-2023");
  script_name("Exim < 4.72 RC2 Multiple Vulnerabilities");
  script_tag(name:"cvss_base", value:"4.4");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_category(ACT_GATHER_INFO);
  script_family("SMTP problems");
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_dependencies("gb_exim_smtp_detect.nasl");
  script_mandatory_keys("exim/detected");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/40454");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/40451");
  script_xref(name:"URL", value:"http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html");
  script_xref(name:"URL", value:"http://bugs.exim.org/show_bug.cgi?id=989");
  script_xref(name:"URL", value:"http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2");

  script_tag(name:"summary", value:"Exim is prone to multiple vulnerabilities.");

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

  script_tag(name:"insight", value:"1. Exim creates temporary files in an insecure manner.

  An attacker with local access could potentially exploit this issue to perform symbolic-link
  attacks.

  Successfully mounting a symlink attack may allow the attacker to delete or corrupt sensitive
  files, which may result in a denial of service. Other attacks may also be possible.

  2. Exim is prone to a local privilege escalation vulnerability.

  Local attackers can exploit this issue to gain elevated privileges on affected computers.");

  script_tag(name:"affected", value:"Versions prior to Exim 4.72 RC2 are vulnerable.");

  script_tag(name:"solution", value:"Updates are available. Please see the references for more
  information.");

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

  exit(0);
}

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

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

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

if( version_is_less( version:vers, test_version:"4.72" ) ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:"4.72" );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );