CVE-2019-3873 Cross-site scripting in picketlink
An attacker can exploit an XInclude parameter in SAML responses to execute cross-site scripting attacks against users of the Picketlink library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-3873?
CVE-2019-3873 is a medium-severity cross-site scripting vulnerability in Redhat Jboss Enterprise Application Platform, published on 12 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
It was found that Picketlink as shipped with Jboss Enterprise Application Platform 7.2 would accept an xinclude parameter in SAMLresponse XML. An attacker could use this flaw to send a URL to achieve cross-site scripting or possibly conduct further attacks.
Weakness: CWE-79
Which versions are affected by CVE-2019-3873?
It affects 2 products.
Products include Redhat Jboss Enterprise Application Platform, Redhat Single Sign-On.
How do I fix CVE-2019-3873?
Apply the vendor's patch.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2019-3873 being exploited?
There is no known exploitation of CVE-2019-3873 in the wild and no public exploit code.
Other vulnerabilities in Redhat Jboss Enterprise Application Platform
- CVE-2017-12149 Red Hat JBoss Application Server Remote Code Execution
- CVE-2010-1428 Red Hat JBoss Information Disclosure
- CVE-2010-0738 Red Hat JBoss Authentication Bypass
- CVE-2016-3690 Deserialization in n/a
- CVE-2017-7504 Deserialization in JBoss
All Redhat Jboss Enterprise Application Platform vulnerabilities
Sources
Also known as GHSA-59jq-66fv-jgww.