CVE-2017-3241 Deserialization in JRockit
Unauthenticated attackers can achieve full system takeover via RMI deserialization flaws in Oracle Java SE and JRockit.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-3241?
CVE-2017-3241 is a critical unsafe deserialization vulnerability in Oracle Jdk, published on 27 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: RMI). Supported versions that are affected are Java SE: 6u131, 7u121 and 8u112; Java SE Embedded: 8u111; JRockit: R28.3.12. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. While the vulnerability is in Java SE, Java SE Embedded, JRockit, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE, Java SE Embedded, JRockit. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS v3.0 Base Score 9.0 (Confidentiality, Integrity and Availability impacts).
Weakness: CWE-20
Which versions are affected by CVE-2017-3241?
It affects 3 products.
Products include Oracle Jdk, Oracle Jre, Oracle Jrockit.
How do I fix CVE-2017-3241?
Apply the vendor's patch.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2017-3241 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-3241 exists.
Public exploit code: 1 Exploit-DB entry and 2 proofs of concept on GitHub.
Other vulnerabilities in Oracle Jdk
Sources
Also known as GHSA-j64j-5jrj-hggj, MINI-2wfh-wp3r-q48r, MINI-4qp4-pw5h-m779, MINI-6h92-xr2m-54mj, MINI-jx92-83m5-44h8, MINI-v3m2-qjc8-q6r6 and 4 more.