CVE-2013-2186: Input Validation
A poison null byte flaw was found in the implementation of the DiskFileItem class. A remote attacker able to supply a serialized instance of the DiskFileItem class, which will be deserialized on a server, could use this flaw to write arbitrary content to any location on the server that is permitted by the user running the application server process.
Other sources
The DiskFileItem class in Apache Commons FileUpload, as used in Red Hat JBoss BRMS 5.3.1; JBoss Portal 4.3 CP07, 5.2.2, and 6.0.0; and Red Hat JBoss Web Server 1.0.2 allows remote attackers to write to arbitrary files via a NULL byte in a file name in a serialized instance.
— GitHub
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2013-2186?
CVE-2013-2186 has been classified as a high severity vulnerability due to the potential for remote file writing by attackers.
How do I fix CVE-2013-2186?
To fix CVE-2013-2186, upgrade to commons-fileupload version 1.3.1 or later.
What software is affected by CVE-2013-2186?
CVE-2013-2186 affects various versions of Apache Commons FileUpload used in Red Hat JBoss BRMS, JBoss Portal, and Red Hat JBoss Web Server.
What type of vulnerability is CVE-2013-2186?
CVE-2013-2186 is classified as a poison null byte flaw that allows remote attackers to exploit file upload functionality.
Can CVE-2013-2186 impact my web server?
Yes, if you are running affected versions of Red Hat JBoss Web Server, you are at risk of the vulnerabilities described in CVE-2013-2186.