Apache Tomcat CVE-2018-11784 Open Redirection Vulnerability

Description

Apache Tomcat is prone to an open-redirection vulnerability because it fails to properly sanitize user-supplied input. An attacker can leverage this issue by constructing a crafted URI and enticing a user to follow it. When an unsuspecting victim follows the link, they may be redirected to an attacker-controlled site; this may aid in phishing attacks. Other attacks are possible. Versions prior to Apache Tomcat 9.0.12, 8.5.34, and 7.0.91 are vulnerable.

Technologies Affected

• Apache Tomcat 7.0.0
• Apache Tomcat 7.0.1
• Apache Tomcat 7.0.10
• Apache Tomcat 7.0.11
• Apache Tomcat 7.0.12
• Apache Tomcat 7.0.13
• Apache Tomcat 7.0.14
• Apache Tomcat 7.0.15
• Apache Tomcat 7.0.16
• Apache Tomcat 7.0.17
• Apache Tomcat 7.0.18
• Apache Tomcat 7.0.19
• Apache Tomcat 7.0.2
• Apache Tomcat 7.0.20
• Apache Tomcat 7.0.21
• Apache Tomcat 7.0.22
• Apache Tomcat 7.0.23
• Apache Tomcat 7.0.24
• Apache Tomcat 7.0.25
• Apache Tomcat 7.0.26
• Apache Tomcat 7.0.27
• Apache Tomcat 7.0.28
• Apache Tomcat 7.0.29
• Apache Tomcat 7.0.3
• Apache Tomcat 7.0.30
• Apache Tomcat 7.0.31
• Apache Tomcat 7.0.32
• Apache Tomcat 7.0.33
• Apache Tomcat 7.0.34
• Apache Tomcat 7.0.35
• Apache Tomcat 7.0.36
• Apache Tomcat 7.0.37
• Apache Tomcat 7.0.38
• Apache Tomcat 7.0.39
• Apache Tomcat 7.0.4
• Apache Tomcat 7.0.4 Beta
• Apache Tomcat 7.0.40
• Apache Tomcat 7.0.41
• Apache Tomcat 7.0.42
• Apache Tomcat 7.0.43
• Apache Tomcat 7.0.44
• Apache Tomcat 7.0.45
• Apache Tomcat 7.0.46
• Apache Tomcat 7.0.47
• Apache Tomcat 7.0.48
• Apache Tomcat 7.0.49
• Apache Tomcat 7.0.5
• Apache Tomcat 7.0.50
• Apache Tomcat 7.0.53
• Apache Tomcat 7.0.54
• Apache Tomcat 7.0.55
• Apache Tomcat 7.0.57
• Apache Tomcat 7.0.59
• Apache Tomcat 7.0.6
• Apache Tomcat 7.0.60
• Apache Tomcat 7.0.65
• Apache Tomcat 7.0.67
• Apache Tomcat 7.0.68
• Apache Tomcat 7.0.69
• Apache Tomcat 7.0.7
• Apache Tomcat 7.0.70
• Apache Tomcat 7.0.72
• Apache Tomcat 7.0.73
• Apache Tomcat 7.0.74
• Apache Tomcat 7.0.75
• Apache Tomcat 7.0.76
• Apache Tomcat 7.0.77
• Apache Tomcat 7.0.78
• Apache Tomcat 7.0.79
• Apache Tomcat 7.0.8
• Apache Tomcat 7.0.80
• Apache Tomcat 7.0.81
• Apache Tomcat 7.0.82
• Apache Tomcat 7.0.84
• Apache Tomcat 7.0.85
• Apache Tomcat 7.0.86
• Apache Tomcat 7.0.88
• Apache Tomcat 7.0.89
• Apache Tomcat 7.0.9
• Apache Tomcat 7.0.90
• Apache Tomcat 8.5.0
• Apache Tomcat 8.5.1
• Apache Tomcat 8.5.11
• Apache Tomcat 8.5.12
• Apache Tomcat 8.5.13
• Apache Tomcat 8.5.14
• Apache Tomcat 8.5.15
• Apache Tomcat 8.5.16
• Apache Tomcat 8.5.2
• Apache Tomcat 8.5.23
• Apache Tomcat 8.5.27
• Apache Tomcat 8.5.28
• Apache Tomcat 8.5.3
• Apache Tomcat 8.5.30
• Apache Tomcat 8.5.31
• Apache Tomcat 8.5.32
• Apache Tomcat 8.5.4
• Apache Tomcat 8.5.5
• Apache Tomcat 8.5.6
• Apache Tomcat 8.5.7
• Apache Tomcat 8.5.8
• Apache Tomcat 8.5.9
• Apache Tomcat 9.0.0.M10
• Apache Tomcat 9.0.0.M11
• Apache Tomcat 9.0.0.M12
• Apache Tomcat 9.0.0.M13
• Apache Tomcat 9.0.0.M15
• Apache Tomcat 9.0.0.M17
• Apache Tomcat 9.0.0.M18
• Apache Tomcat 9.0.0.M19
• Apache Tomcat 9.0.0.M2
• Apache Tomcat 9.0.0.M20
• Apache Tomcat 9.0.0.M21
• Apache Tomcat 9.0.0.M22
• Apache Tomcat 9.0.0.M3
• Apache Tomcat 9.0.0.M4
• Apache Tomcat 9.0.0.M5
• Apache Tomcat 9.0.0.M7
• Apache Tomcat 9.0.0.M9
• Apache Tomcat 9.0.0M6
• Apache Tomcat 9.0.0M8
• Apache Tomcat 9.0.1
• Apache Tomcat 9.0.10
• Apache Tomcat 9.0.4
• Apache Tomcat 9.0.5
• Apache Tomcat 9.0.7
• Apache Tomcat 9.0.8
• Apache Tomcat 9.0.9
• McAfee SIEM Enterprise Security Manager 10.3.0
• McAfee SIEM Enterprise Security Manager 10.3.4
• McAfee SIEM Enterprise Security Manager 11.1.0
• McAfee SIEM Enterprise Security Manager 11.1.3
• NetApp Snap Creator Framework
• Oracle Agile Engineering Data Management 6.2.0
• Oracle Agile Engineering Data Management 6.2.1
• Oracle Database Server 12.2.0.1
• Oracle Database Server 18c
• Oracle Database Server 19c
• Oracle Hospitality Guest Access 4.2.0
• Oracle Hospitality Guest Access 4.2.1
• Oracle Instantis EnterpriseTrack 17.1
• Oracle Instantis EnterpriseTrack 17.2
• Oracle Instantis EnterpriseTrack 17.3
• Oracle MICROS Retail XBRi Loss Prevention 10.8.0
• Oracle MICROS Retail XBRi Loss Prevention 10.8.1
• Oracle MICROS Retail XBRi Loss Prevention 10.8.3
• Oracle Retail Order Broker 15.0
• Oracle Retail Order Broker 5.1
• Oracle Retail Order Broker 5.2
• Oracle Secure Global Desktop 5.4
• Redhat Enterprise Linux 8
• Redhat Enterprise Linux Desktop 7
• Redhat Enterprise Linux EUS Compute Node 7.6
• Redhat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6
• Redhat Enterprise Linux Server - AUS 7.6
• Redhat Enterprise Linux Server - Extended Update Support 7.6
• Redhat Enterprise Linux Server - Update Services for SAP Solutions 7.6
• Redhat Enterprise Linux Server 7
• Redhat Enterprise Linux Server TUS 7.6
• Redhat Enterprise Linux Workstation Optional 7
• Redhat Enterprise Linux for ARM 64 7
• Redhat Enterprise Linux for ARM 64 8
• Redhat Enterprise Linux for IBM System z (Structure A) 7
• Redhat Enterprise Linux for IBM z Systems - Extended Update Support 7.6
• Redhat Enterprise Linux for IBM z Systems 7
• Redhat Enterprise Linux for IBM z Systems 8
• Redhat Enterprise Linux for Power 9 7
• Redhat Enterprise Linux for Power little endian 8
• Redhat Enterprise Linux for Power, big endian - Extended Update Support 7.6
• Redhat Enterprise Linux for Power, big endian 7
• Redhat Enterprise Linux for Power, little endian - Extended Update Supp 7.6
• Redhat Enterprise Linux for Power, little endian 7
• Redhat Enterprise Linux for Scientific Computing 7
• Redhat JBoss Enterprise Web Server 3 for RHEL 6
• Redhat JBoss Enterprise Web Server 3 for RHEL 7
• Redhat JBoss Enterprise Web Server Text-Only Advisories
• Ubuntu Ubuntu Linux 14.04 LTS
• Ubuntu Ubuntu Linux 16.04 LTS

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of exploitation.

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of a successful attack, run the browser with the minimal amount of privileges required for functionality.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to detect and block attacks and anomalous activity such as requests containing suspicious URI sequences. Since the webserver may log such requests, review its logs regularly.

Do not follow links provided by unknown or untrusted sources.
To reduce the likelihood of successful exploits, never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.

Updates are available. Please see the references or vendor advisory for more information.