Vulnerabilities > CVE-2018-11775 - Improper Certificate Validation vulnerability in multiple products

047910
CVSS 7.4 - HIGH
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
NONE
network
high complexity
apache
oracle
CWE-295
nessus

Summary

TLS hostname verification when using the Apache ActiveMQ Client before 5.15.6 was missing which could make the client vulnerable to a MITM attack between a Java application using the ActiveMQ client and the ActiveMQ server. This is now enabled by default.

Vulnerable Configurations

Part Description Count
Application
Apache
55
Application
Oracle
6

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Creating a Rogue Certificate Authority Certificate
    An attacker exploits a weakness in the MD5 hash algorithm (weak collision resistance) to generate a certificate signing request (CSR) that contains collision blocks in the "to be signed" part. The attacker specially crafts two different, but valid X.509 certificates that when hashed with the MD5 algorithm would yield the same value. The attacker then sends the CSR for one of the certificates to the Certification Authority which uses the MD5 hashing algorithm. That request is completely valid and the Certificate Authority issues an X.509 certificate to the attacker which is signed with its private key. An attacker then takes that signed blob and inserts it into another X.509 certificate that the attacker generated. Due to the MD5 collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the attackers' second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority. To make the attack more interesting, the second certificate could be not just a regular certificate, but rather itself a signing certificate. Thus the attacker is able to start their own Certification Authority that is anchored in its root of trust in the legitimate Certification Authority that has signed the attackers' first X.509 certificate. If the original Certificate Authority was accepted by default by browsers, so will now the Certificate Authority set up by the attacker and of course any certificates that it signs. So the attacker is now able to generate any SSL certificates to impersonate any web server, and the user's browser will not issue any warning to the victim. This can be used to compromise HTTPS communications and other types of systems where PKI and X.509 certificates may be used (e.g., VPN, IPSec) .

Nessus

  • NASL familyMisc.
    NASL idORACLE_ENTERPRISE_MANAGER_JUL_2019_CPU.NASL
    descriptionThe version of Oracle Enterprise Manager Cloud Control installed on the remote host is affected by multiple vulnerabilities in Enterprise Manager Base Platform component: - An unspecified vulnerability in the Enterprise Manager Base Platform component of Oracle Enterprise Manager Products Suite (subcomponent: Connector Framework (Apache CXF)), which could allow an unauthenticated, remote attacker to compromise Enterprise Manager Base Platform. (CVE-2018-8039) - An unspecified vulnerability in the Oracle Enterprise Manager Base Platform component of Oracle Enterprise Manager Products Suite (subcomponent: Valid Session (Apache ActiveMQ)), which could allow an unauthenticated, remote attacker to compromise Oracle Enterprise Manager Base Platform. (CVE-2019-0222) - An unspecified vulnerability in the Enterprise Manager Base Platform component of Oracle Enterprise Manager Products Suite (subcomponent: Discovery Framework (OpenSSL)), which could allow and unauthenticated, remote attacker to compromise Enterprise Manager Base Platform. (CVE-2019-1559)
    last seen2020-06-01
    modified2020-06-02
    plugin id126775
    published2019-07-17
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/126775
    titleOracle Enterprise Manager Cloud Control (Jul 2019 CPU)
  • NASL familyCGI abuses
    NASL idACTIVEMQ_5_15_6.NASL
    descriptionThe version of Apache ActiveMQ running on the remote host is 5.x prior to 5.15.6. It is, therefore, affected by a flaw related to TLS hostname verification and ActiveMQ Client that allows man-in-the-middle attacks.
    last seen2020-06-01
    modified2020-06-02
    plugin id117483
    published2018-09-14
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/117483
    titleApache ActiveMQ Client 5.x < 5.15.6 TLS Hostname Verification Weakness

Redhat

advisories
rhsa
idRHSA-2019:3892

References