CVE-2016-0793 WildFly has incomplete blacklist vulnerability
Remote attackers can read sensitive WEB-INF and META-INF files in WildFly on Windows by bypassing servlet filter restrictions using case variations or special characters.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-0793?
CVE-2016-0793 is a high-severity path traversal vulnerability in n/a, published on 1 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Incomplete blacklist vulnerability in the servlet filter restriction mechanism in WildFly (formerly JBoss Application Server) before 10.0.0.Final on Windows allows remote attackers to read the sensitive files in the (1) WEB-INF or (2) META-INF directory via a request that contains (a) lowercase or (b) "meaningless" characters.
Weakness: CWE-200
Which versions are affected by CVE-2016-0793?
4 open source packages ship an affected version, including org.wildfly:wildfly-parent and org.wildfly:wildfly-undertow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.wildfly:wildfly-parent Maven | All versions | 10.0.0.Final |
org.wildfly:wildfly-parent Maven | All versions | 10.0.0.Final |
org.wildfly:wildfly-undertow Maven | All versions | 10.0.0.Final |
org.wildfly:wildfly-undertow Maven | All versions | 10.0.0.Final |
Products include Redhat Jboss Wildfly Application Server.
How do I fix CVE-2016-0793?
Upgrade org.wildfly:wildfly-parent to 10.0.0.Final or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2016-0793 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-0793 exists.
Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-9q87-22gr-r8qf.