OpenSSL 0.9.8s DTLS Denial of Service

2012-01-27T00:00:00
ID OPENSSL_0_9_8T.NASL
Type nessus
Reporter This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.
Modified 2020-01-02T00:00:00

Description

According to its banner, the remote web server uses OpenSSL version 0.9.8s. This version has a flaw in the fix for CVE-2011-4108 such that Datagram Transport Layer Security (DTLS) applications that use it are vulnerable to a denial of service attack.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(57711);
  script_version("1.7");
  script_cvs_date("Date: 2018/11/15 20:50:25");

  script_cve_id("CVE-2012-0050");
  script_bugtraq_id(51563);

  script_name(english:"OpenSSL 0.9.8s DTLS Denial of Service");
  script_summary(english:"Does a banner check");

  script_set_attribute(
    attribute:"synopsis",
    value:
"The remote host may be affected by a denial of service
vulnerability."
  );
  script_set_attribute(
    attribute:"description",
    value:
"According to its banner, the remote web server uses OpenSSL version
0.9.8s.  This version has a flaw in the fix for CVE-2011-4108 such
that Datagram Transport Layer Security (DTLS) applications that use it
are vulnerable to a denial of service attack."
  );
  script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20120118.txt");
  script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/changelog.html");
  script_set_attribute(attribute:"solution", value:"Upgrade to OpenSSL 0.9.8t or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/01/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/27");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:openssl:openssl");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");

  script_dependencies("openssl_version.nasl");
  script_require_keys("openssl/port");

  exit(0);
}

include("openssl_version.inc");

openssl_check_version(fixed:'0.9.8t', min:"0.9.8s", severity:SECURITY_WARNING);