# CVE-2020-11579: Information disclosure in n/a

> Remote attackers can disclose local files via the installer test-connection script if MySQL local data infile is enabled or PHP is outdated.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:** 3 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-cx9f-9g5f-369f

## What is CVE-2020-11579?

CVE-2020-11579 is a high-severity vulnerability in Chadhaajay Phpkb, published on 3 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Chadha PHPKB 9.0 Enterprise Edition. installer/test-connection.php (part of the installation process) allows a remote unauthenticated attacker to disclose local files on hosts running PHP before 7.2.16, or on hosts where the MySQL ALLOW LOCAL DATA INFILE option is enabled.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2020-11579?

It affects 1 product.


Products: Chadhaajay Phpkb.

## How do I fix CVE-2020-11579?

No fix has been published for CVE-2020-11579 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-11579 being exploited?

There is no known exploitation of CVE-2020-11579 in the wild and no public exploit code.

Public exploit code:

- Exploit code for CVE-2020-11579, an arbitrary file disclosure through the MySQL client in PHPKB (github_poc): https://github.com/ShielderSec/CVE-2020-11579

## Other vulnerabilities in Chadhaajay Phpkb

- [CVE-2020-10478](https://insights.sbomify.com/CVE-2020-10478/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2020-10386](https://insights.sbomify.com/CVE-2020-10386/): File upload in n/a (high 7.2)
- [CVE-2020-10389](https://insights.sbomify.com/CVE-2020-10389/): Code injection in n/a (high 7.2)
- [CVE-2020-10390](https://insights.sbomify.com/CVE-2020-10390/): Command injection in n/a (high 7.2)
- [CVE-2020-10458](https://insights.sbomify.com/CVE-2020-10458/): Path traversal in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11579 and fix it if it is affected.

What it is: CVE-2020-11579 is a high-severity vulnerability in Chadhaajay Phpkb, published on 3 Sep 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-2020-11579 in the wild and no public exploit code.

Affected product: Chadhaajay Phpkb. 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-2020-11579/ (Markdown: https://insights.sbomify.com/CVE-2020-11579/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11579
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11579
- OSV: https://osv.dev/vulnerability/CVE-2020-11579

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-11579/
Summaries are generated and may contain mistakes; the official description above is the record.