CVE-2016-4465: Input Validation
First published: Mon Jun 20 2016(Updated: )
If an application allows enter na URL field in a form and built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL. Affected versions: Struts 2.3.20 - Struts 2.3.28.1 and Struts 2.5 External References: <a href="https://struts.apache.org/docs/s2-041.html">https://struts.apache.org/docs/s2-041.html</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.apache.struts:struts2-core | >=2.5.0<2.5.13 | 2.5.13 |
| maven/org.apache.struts:struts2-core | >=2.3.20<2.3.29 | 2.3.29 |
| redhat/Struts | <2.3.29 | 2.3.29 |
| redhat/Struts | <2.5.13 | 2.5.13 |
| Apache Struts 2 | =2.3.20 | |
| Apache Struts 2 | =2.3.20.1 | |
| Apache Struts 2 | =2.3.20.3 | |
| Apache Struts 2 | =2.3.24 | |
| Apache Struts 2 | =2.3.24.1 | |
| Apache Struts 2 | =2.3.24.3 | |
| Apache Struts 2 | =2.3.28 | |
| Apache Struts 2 | =2.3.28.1 | |
| Apache Struts 2 | =2.5 | |
| Apache Struts 2 | =2.5-beta1 | |
| Apache Struts 2 | =2.5-beta2 | |
| Apache Struts 2 | =2.5-beta3 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2016-4465
- https://bugzilla.redhat.com/show_bug.cgi?id=1348253
- https://struts.apache.org/docs/s2-041.html
- http://jvn.jp/en/jp/JVN12352818/index.html
- http://jvndb.jvn.jp/jvndb/JVNDB-2016-000114
- http://www-01.ibm.com/support/docview.wss?uid=swg21987854
- https://github.com/apache/struts/commit/a0fdca138feec2c2e94eb75ca1f8b76678b4d152
- https://github.com/apache/struts/commit/eccc31ebce5430f9e91b9684c63eaaf885e603f9
- https://github.com/advisories/GHSA-xg75-68x3-7p3q (Advisory)
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.securityfocus.com/bid/91278
Frequently Asked Questions
What is the severity of CVE-2016-4465?
CVE-2016-4465 has a medium severity due to the potential for denial-of-service attacks when validating specially crafted URLs.
How do I fix CVE-2016-4465?
To remediate CVE-2016-4465, upgrade to Struts versions 2.3.29 or 2.5.13.
What versions are affected by CVE-2016-4465?
CVE-2016-4465 affects Struts versions 2.3.20 to 2.3.28.1 and 2.5.
What type of vulnerability is CVE-2016-4465?
CVE-2016-4465 is a denial-of-service vulnerability caused by improper URL validation.
Can CVE-2016-4465 be exploited remotely?
Yes, CVE-2016-4465 can be exploited remotely if an application improperly validates user-supplied URLs.
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