CVE-2017-7672: Input Validation
First published: Thu Jul 13 2017(Updated: )
If an application allows enter an URL in a form field 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. Solution is to upgrade to Apache Struts version 2.5.12.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.apache.struts:struts2-core | >=2.5.0<2.5.12 | 2.5.12 |
| Apache Struts 2 | =2.5 | |
| Apache Struts 2 | =2.5.1 | |
| Apache Struts 2 | =2.5.2 | |
| Apache Struts 2 | =2.5.5 | |
| Apache Struts 2 | =2.5.8 | |
| Apache Struts 2 | =2.5.10 | |
| Apache Struts 2 | =2.5.10.1 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2017-7672
- https://lists.apache.org/thread.html/3795c4dd46d9ec75f4a6eb9eca11c11edd3e796c6c1fd7b17b5dc50d@%3Cannouncements.struts.apache.org%3E
- https://security.netapp.com/advisory/ntap-20180706-0002/
- http://struts.apache.org/docs/s2-047.html
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- https://web.archive.org/web/20170907215142/http://www.securitytracker.com/id/1039114
- https://web.archive.org/web/20200227144724/http://www.securityfocus.com/bid/99563
- https://github.com/advisories/GHSA-9gp7-jvm2-r4mx (Advisory)
- http://www.securityfocus.com/bid/99563
- http://www.securitytracker.com/id/1039114
- https://lists.apache.org/thread.html/3795c4dd46d9ec75f4a6eb9eca11c11edd3e796c6c1fd7b17b5dc50d%40%3Cannouncements.struts.apache.org%3E
Frequently Asked Questions
What is the severity of CVE-2017-7672?
CVE-2017-7672 is considered a critical vulnerability due to its potential to overload server processes during URL validation.
How do I fix CVE-2017-7672?
To fix CVE-2017-7672, you should upgrade to Apache Struts version 2.5.12 or later.
What software versions are affected by CVE-2017-7672?
CVE-2017-7672 affects Apache Struts versions from 2.5.0 to 2.5.10.1.
What type of vulnerability is CVE-2017-7672?
CVE-2017-7672 is a denial-of-service vulnerability that can be exploited through URL validation.
Is there a workaround for CVE-2017-7672?
There is no known workaround for CVE-2017-7672; upgrading to the latest version is the recommended solution.
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