Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale are not affected.
This issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.10.0, from 7.0.0 through 7.2.1.
Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.
Missing XML Validation vulnerability in Apache Struts, Apache Struts.
This issue affects Apache Struts: from 2.0.0 before 2.2.1; Apache Struts: from 2.2.1 through 6.1.0.
Users are recommended to upgrade to version 6.1.1, which fixes the issue.
Denial of Service vulnerability in Apache Struts, file leak in multipart request processing causes disk exhaustion.
This issue affects Apache Struts: from 2.0.0 through 6.7.4, from 7.0.0 through 7.0.3.
Users are recommended to upgrade to version 6.8.0 or 7.1.1, which fixes the issue.
Denial of Service vulnerability in Apache Struts, file leak in multipart request processing causes disk exhaustion.
This issue affects Apache Struts: from 2.0.0 through 6.7.0, from 7.0.0 through 7.0.3.
Users are recommended to upgrade to version 6.8.0 or 7.1.1, which fixes the issue.
A local code execution issue exists in Apache Struts2 when processing malformed XSLT files, which could let a malicious user upload and execute arbitrary files.
CookieInterceptor in Apache Struts before 2.3.20, when a wildcard cookiesName value is used, does not properly restrict access to the getClass method, which allows remote attackers to "manipulate" the ClassLoader and execute arbitrary code via a crafted request. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-0094.
It was found that the fix for CVE-2014-0094 was incomplete. The Struts 2 ParametersInterceptor was updated to block access to the 'class' parameter, but not all forms in which this parameter can be specified were blocked. A remote attacker could use this flaw to manipulate the ClassLoader used by the application server running Struts 2. This could lead to arbitrary remote code execution under certain conditions.
This flaw is reported to affect Struts 2.0.0 through to Struts 2.3.16.1. It is corrected in 2.3.16.2.
External References:
https://cwiki.apache.org/confluence/display/WW/S2-021