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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.OPENSSL_0_9_7A.NASL
HistoryJun 07, 2024 - 12:00 a.m.

OpenSSL 0.9.7 < 0.9.7a Vulnerability

2024-06-0700:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
openssl
version 0.9.7a
vulnerability
information leakage
timing attack
mac computation
padding
cryptographic attacks
cve-2003-0078
nessus
self-reported version number
scanner

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

6.3 Medium

AI Score

Confidence

Low

0.028 Low

EPSS

Percentile

90.8%

The version of OpenSSL installed on the remote host is prior to 0.9.7a. It is, therefore, affected by a vulnerability as referenced in the 0.9.7a advisory.

  • ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the Vaudenay timing attack. (CVE-2003-0078)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(200202);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/07");

  script_cve_id("CVE-2003-0078");

  script_name(english:"OpenSSL 0.9.7 < 0.9.7a Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote service is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of OpenSSL installed on the remote host is prior to 0.9.7a. It is, therefore, affected by a vulnerability as
referenced in the 0.9.7a advisory.

  - ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC
    computation if an incorrect block cipher padding is used, which causes an information leak (timing
    discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between
    padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the
    Vaudenay timing attack. (CVE-2003-0078)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.cve.org/CVERecord?id=CVE-2003-0078");
  script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20030219.txt");
  script_set_attribute(attribute:"solution", value:
"Upgrade to OpenSSL version 0.9.7a or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2003-0078");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2003/02/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2003/02/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/07");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:openssl:openssl");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("openssl_version.nasl", "openssl_nix_installed.nbin", "openssl_win_installed.nbin");
  script_require_keys("installed_sw/OpenSSL");

  exit(0);
}

include('vcf.inc');
include('vcf_extras_openssl.inc');

var app_info = vcf::combined_get_app_info(app:'OpenSSL');

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  { 'min_version' : '0.9.7', 'fixed_version' : '0.9.7a' }
];

vcf::openssl::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);
VendorProductVersionCPE
opensslopensslcpe:/a:openssl:openssl

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

6.3 Medium

AI Score

Confidence

Low

0.028 Low

EPSS

Percentile

90.8%