# CVE-2020-15770: Security feature bypass in n/a

> Attackers can brute-force local user passwords in Gradle Enterprise due to missing account lockout mechanisms after failed login attempts.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-5wcx-gjhc-645f

## What is CVE-2020-15770?

CVE-2020-15770 is a medium-severity vulnerability in n/a, published on 18 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An issue was discovered in Gradle Enterprise 2018.5. An attacker can potentially make repeated attempts to guess a local user's password, due to lack of lock-out after excessive failed logins.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2020-15770?

It affects 1 product.


Products: Gradle Enterprise.

## How do I fix CVE-2020-15770?

No fix has been published for CVE-2020-15770 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-15770 being exploited?

There is no known exploitation of CVE-2020-15770 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-49238](https://insights.sbomify.com/CVE-2023-49238/): Hardcoded credentials in n/a (critical 9.8)
- [CVE-2022-27919](https://insights.sbomify.com/CVE-2022-27919/): Missing authorization in n/a (critical 9.8)
- [CVE-2019-11402](https://insights.sbomify.com/CVE-2019-11402/): Information disclosure in n/a (critical 9.8)
- [CVE-2020-15776](https://insights.sbomify.com/CVE-2020-15776/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2022-25364](https://insights.sbomify.com/CVE-2022-25364/): Misconfiguration in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-15770 and fix it if it is affected.

What it is: CVE-2020-15770 is a medium-severity vulnerability in n/a, published on 18 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-15770 in the wild and no public exploit code.

Affected product: n/a. 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-2020-15770/ (Markdown: https://insights.sbomify.com/CVE-2020-15770/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-15770
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-15770
- OSV: https://osv.dev/vulnerability/CVE-2020-15770

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-15770/
Summaries are generated and may contain mistakes; the official description above is the record.