CVE-2016-0763: Medium severity debian linux vulnerability
ResourceLinkFactory.setGlobalContext() is a public method and was accessible by web applications running under a security manager without any checks. This allowed a malicious web application to inject a malicious global context that could in turn be used to disrupt other web applications and/or read and write data owned by other web applications.
External references:
http://seclists.org/bugtraq/2016/Feb/147
Other sources
The setGlobalContext method in org/apache/naming/factory/ResourceLinkFactory.java in Apache Tomcat 7.x before 7.0.68, 8.x before 8.0.31, and 9.x before 9.0.0.M3 does not consider whether ResourceLinkFactory.setGlobalContext callers are authorized, which allows remote authenticated users to bypass intended SecurityManager restrictions and read or write to arbitrary application data, or cause a denial of service (application disruption), via a web application that sets a crafted global context.
— GitHub
The setGlobalContext method in org/apache/naming/factory/ResourceLinkFactory.java in Apache Tomcat 7.x before 7.0.68, 8.x before 8.0.31, and 9.x before 9.0.0.M3 does not consider whether ResourceLinkFactory.setGlobalContext callers are authorized, which allows remote authenticated users to bypass intended SecurityManager restrictions and read or write to arbitrary application data, or cause a denial of service (application disruption), via a web application that sets a crafted global context.
— MITRE
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2016-0763?
CVE-2016-0763 has a moderate severity rating as it allows a malicious web application to disrupt other applications and read sensitive data.
How do I fix CVE-2016-0763?
To fix CVE-2016-0763, upgrade to Apache Tomcat versions 6.0.45, 7.0.68, 8.0.32, or 9.0.0.M3.
Which versions of Tomcat are affected by CVE-2016-0763?
CVE-2016-0763 affects Apache Tomcat versions prior to 6.0.45, 7.0.68, 8.0.32, and versions between 9.0.0-M1 and 9.0.0-M2.
What type of vulnerability is CVE-2016-0763?
CVE-2016-0763 is a security vulnerability related to access controls in the ResourceLinkFactory.setGlobalContext() method.
Can CVE-2016-0763 lead to data exposure?
Yes, CVE-2016-0763 can potentially lead to unauthorized data exposure by allowing malicious applications to read sensitive data.