# CVE-2020-2764: Information disclosure in Java

> An unauthenticated attacker can read a subset of Java SE data via network access to the Advanced Management Console component.

- **Severity:** Low 3.7 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Apr 2020
- **Updated:** 30 Sep 2024
- **Also known as:** GHSA-5r94-732v-9hm6

## What is CVE-2020-2764?

CVE-2020-2764 is a low-severity vulnerability in Oracle Corporation Java, published on 15 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Vulnerability in the Java SE product of Oracle Java SE (component: Advanced Management Console). The supported version that is affected is Java Advanced Management Console: 2.16. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE accessible data. 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 3.0 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

## Which versions are affected by CVE-2020-2764?

It affects 1 product.


Products: Oracle Java Advanced Management Console.

## How do I fix CVE-2020-2764?

No fix has been published for CVE-2020-2764 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-2764 being exploited?

There is no known exploitation of CVE-2020-2764 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Corporation Java

- [CVE-2017-10104](https://insights.sbomify.com/CVE-2017-10104/): Privilege escalation in Java (high 7.4)
- [CVE-2017-10145](https://insights.sbomify.com/CVE-2017-10145/): Missing authorization in Java (high 7.4)
- [CVE-2019-2540](https://insights.sbomify.com/CVE-2019-2540/): Missing authorization in Java (medium 6.1)
- [CVE-2017-10121](https://insights.sbomify.com/CVE-2017-10121/): Missing authorization in Java (medium 6.1)
- [CVE-2017-10342](https://insights.sbomify.com/CVE-2017-10342/): Denial of service in Java (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-2764 and fix it if it is affected.

What it is: CVE-2020-2764 is a low-severity vulnerability in Oracle Corporation Java, published on 15 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-2764 in the wild and no public exploit code.

Affected product: Oracle Corporation Java. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-2764/ (Markdown: https://insights.sbomify.com/CVE-2020-2764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-2764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-2764
- OSV: https://osv.dev/vulnerability/CVE-2020-2764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-2764/
Summaries are generated and may contain mistakes; the official description above is the record.