According to its banner, the remote web server uses a version of OpenSSL 0.9.8 prior to 0.9.8zf. The OpenSSL library is, therefore, affected by the following vulnerabilities :
A use-after-free condition exists in the d2i_ECPrivateKey() function due to improper processing of malformed EC private key files during import. A remote attacker can exploit this to dereference or free already freed memory, resulting in a denial of service or other unspecified impact. (CVE-2015-0209)
An invalid read flaw exists in the ASN1_TYPE_cmp() function due to improperly performed boolean-type comparisons. A remote attacker can exploit this, via a crafted X.509 certificate to an endpoint that uses the certificate-verification feature, to cause an invalid read operation, resulting in a denial of service.
(CVE-2015-0286)
A flaw exists in the ASN1_item_ex_d2i() function due to a failure to reinitialize ‘CHOICE’ and ‘ADB’ data structures when reusing a structure in ASN.1 parsing.
This allows a remote attacker to cause an invalid write operation and memory corruption, resulting in a denial of service. (CVE-2015-0287)
A NULL pointer dereference flaw exists in the X509_to_X509_REQ() function due to improper processing of certificate keys. This allows a remote attacker, via a crafted X.509 certificate, to cause a denial of service. (CVE-2015-0288)
A NULL pointer dereference flaw exists in the PKCS#7 parsing code due to incorrect handling of missing outer ContentInfo. This allows a remote attacker, using an application that processes arbitrary PKCS#7 data and providing malformed data with ASN.1 encoding, to cause a denial of service. (CVE-2015-0289)
A flaw exists in servers that both support SSLv2 and enable export cipher suites due to improper implementation of SSLv2. A remote attacker can exploit this, via a crafted CLIENT-MASTER-KEY message, to cause a denial of service. (CVE-2015-0293)
A key disclosure vulnerability exists in the SSLv2 implementation in the get_client_master_key() function due to the acceptance of a nonzero CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an arbitrary cipher. A man-in-the-middle attacker can exploit this to determine the MASTER-KEY value and decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle.
(CVE-2016-0703)
An information disclosure vulnerability exists in the SSLv2 implementation in the get_client_master_key() function due to incorrectly overwriting MASTER-KEY bytes during use of export cipher suites. A remote attacker can exploit this to create a Bleichenbacher oracle.
(CVE-2016-0704)
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(82030);
script_version("1.17");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/21");
script_cve_id(
"CVE-2015-0209",
"CVE-2015-0286",
"CVE-2015-0287",
"CVE-2015-0288",
"CVE-2015-0289",
"CVE-2015-0293",
"CVE-2016-0703",
"CVE-2016-0704"
);
script_bugtraq_id(
73225,
73227,
73231,
73232,
73237,
73239
);
script_name(english:"OpenSSL 0.9.8 < 0.9.8zf Multiple Vulnerabilities");
script_summary(english:"Performs a banner check.");
script_set_attribute(attribute:"synopsis", value:
"The remote service is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"According to its banner, the remote web server uses a version of
OpenSSL 0.9.8 prior to 0.9.8zf. The OpenSSL library is, therefore,
affected by the following vulnerabilities :
- A use-after-free condition exists in the
d2i_ECPrivateKey() function due to improper processing
of malformed EC private key files during import. A
remote attacker can exploit this to dereference or free
already freed memory, resulting in a denial of service
or other unspecified impact. (CVE-2015-0209)
- An invalid read flaw exists in the ASN1_TYPE_cmp()
function due to improperly performed boolean-type
comparisons. A remote attacker can exploit this, via a
crafted X.509 certificate to an endpoint that uses the
certificate-verification feature, to cause an invalid
read operation, resulting in a denial of service.
(CVE-2015-0286)
- A flaw exists in the ASN1_item_ex_d2i() function due to
a failure to reinitialize 'CHOICE' and 'ADB' data
structures when reusing a structure in ASN.1 parsing.
This allows a remote attacker to cause an invalid write
operation and memory corruption, resulting in a denial
of service. (CVE-2015-0287)
- A NULL pointer dereference flaw exists in the
X509_to_X509_REQ() function due to improper processing
of certificate keys. This allows a remote attacker, via
a crafted X.509 certificate, to cause a denial of
service. (CVE-2015-0288)
- A NULL pointer dereference flaw exists in the PKCS#7
parsing code due to incorrect handling of missing outer
ContentInfo. This allows a remote attacker, using an
application that processes arbitrary PKCS#7 data and
providing malformed data with ASN.1 encoding, to cause
a denial of service. (CVE-2015-0289)
- A flaw exists in servers that both support SSLv2 and
enable export cipher suites due to improper
implementation of SSLv2. A remote attacker can exploit
this, via a crafted CLIENT-MASTER-KEY message, to cause
a denial of service. (CVE-2015-0293)
- A key disclosure vulnerability exists in the SSLv2
implementation in the get_client_master_key() function
due to the acceptance of a nonzero CLIENT-MASTER-KEY
CLEAR-KEY-LENGTH value for an arbitrary cipher. A
man-in-the-middle attacker can exploit this to determine
the MASTER-KEY value and decrypt TLS ciphertext data by
leveraging a Bleichenbacher RSA padding oracle.
(CVE-2016-0703)
- An information disclosure vulnerability exists in the
SSLv2 implementation in the get_client_master_key()
function due to incorrectly overwriting MASTER-KEY bytes
during use of export cipher suites. A remote attacker
can exploit this to create a Bleichenbacher oracle.
(CVE-2016-0704)");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20150319.txt");
script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/news/secadv/20160301.txt");
script_set_attribute(attribute:"solution", value:
"Upgrade to OpenSSL 0.9.8zf or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-0209");
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:"2015/03/19");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/24");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/a:openssl:openssl");
script_set_attribute(attribute:"agent", value:"all");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Web Servers");
script_copyright(english:"This script is Copyright (C) 2015-2023 Tenable Network Security, Inc.");
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' : "0.9.8", 'fixed_version' : '0.9.8zf'}];
vcf::openssl::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0209
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0286
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0287
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0288
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0289
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0293
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0703
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0704
www.openssl.org/news/secadv/20150319.txt
www.openssl.org/news/secadv/20160301.txt