CVE-2021-3688 Path traversal in Red Hat JBCS HTTP Server
Attackers can bypass path restrictions to access unauthorized information or modify data in Red Hat JBoss Core Services HTTP Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-3688?
CVE-2021-3688 is a medium-severity path traversal vulnerability in Red Hat JBCS HTTP Server, published on 26 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in Red Hat JBoss Core Services HTTP Server in all versions, where it does not properly normalize the path component of a request URL contains dot-dot-semicolon(s). This flaw could allow an attacker to access unauthorized information or possibly conduct further attacks. The highest threat from this vulnerability is to data confidentiality and integrity.
Which versions are affected by CVE-2021-3688?
It affects 1 product.
Products include Redhat Jboss Core Services Httpd.
How do I fix CVE-2021-3688?
Apply the vendor's patch.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-3688 being exploited?
There is no known exploitation of CVE-2021-3688 in the wild and no public exploit code.
Other vulnerabilities in Red Hat JBCS HTTP Server
Sources
Also known as GHSA-f3rq-463v-2j36.