CVE-2017-12149 Red Hat JBoss Application Server: unsafe data loading
In plain words: The program unpacks saved data from outside without checking it is safe. Usually lets an attacker run code on the server.
Confirmed exploited by CISA on · US federal patch deadline Jun 10, 2022
What to do
- Install Red Hat's security update for JBoss Application Server. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- Red Hat JBoss Application Server Remote Code Execution Vulnerability
- Product
- Red Hat JBoss Application Server
- CISA description
- The JBoss Application Server, shipped with Red Hat Enterprise Application Platform 5.2, allows an attacker to execute arbitrary code via crafted serialized data.
- Type of flaw
- Unsafe data loading (CWE-502)
- Confirmed exploited
- Dec 10, 2021 — known to be used in ransomware attacks
- US federal patch deadline
- Jun 10, 2022
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Answering about CVE-2017-12149 ·
Questions about CVE-2017-12149
Is CVE-2017-12149 being exploited?
Yes. CISA added CVE-2017-12149 to its Known Exploited Vulnerabilities catalog on Dec 10, 2021, which means there is reliable evidence of real-world attacks, including by ransomware groups.
How do I fix CVE-2017-12149?
Install Red Hat's security update for JBoss Application Server. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2017-12149?
Only if you use Red Hat JBoss Application Server. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.