CVE-2020-15777

Description

An issue was discovered in the Maven Extension plugin before 1.6 for Gradle Enterprise. It is vulnerable to, in the worst case, Remote Code Execution, and in the general case, local privilege escalation. Internally, the plugin uses a socket connection to send serialized Java objects that are deserialized by a Java standard library ObjectInputStream. This ObjectInputStream was not restricted to a list of trusted classes, thus allowing an attacker to send a malicious deserialization gadget chain to achieve code execution. The socket was not bound exclusively to localhost. The port this socket is assigned to is randomly selected by the JVM and is not intentionally exposed to the public (either by design or documentation).

How to fix CVE-2020-15777

To remediate CVE-2020-15777, upgrade the affected package to a fixed version below.

• —upgrade to 1.6 or later

Is CVE-2020-15777 being exploited?

Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 1.6

CVSS scores

References (4)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-15777
• WEBdocs.gradle.com/enterprise/maven-extension/#1_6
• WEBdocs.gradle.com/enterprise/maven-extension/#release_history
• WEBsecurity.gradle.com/advisory/CVE-2020-15777