CVE-2020-24164 Gadget chain attack in Nippy
Attackers can execute arbitrary code via malicious payloads due to unsafe Java deserialization in the Nippy library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-24164?
CVE-2020-24164 is a high-severity unsafe deserialization vulnerability in n/a, published on 11 Sep 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A deserialization flaw is present in Taoensso Nippy before 2.14.2. In some circumstances, it is possible for an attacker to create a malicious payload that, when deserialized, will allow arbitrary code to be executed. This occurs because there is automatic use of the Java Serializable interface.
Weakness: CWE-502
Which versions are affected by CVE-2020-24164?
2 open source packages ship an affected version, including com.taoensso:nippy. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.taoensso:nippy Maven | All versions | 2.14.2 |
com.taoensso:nippy Maven | All versions | 2.14.2 |
Products include Taoensso Nippy.
How do I fix CVE-2020-24164?
Upgrade com.taoensso:nippy to 2.14.2 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-24164 being exploited?
There is no known exploitation of CVE-2020-24164 in the wild and no public exploit code.
Sources
Also known as GHSA-p5gm-fgfx-hr7h.