# CVE-2023-39415: Auth bypass in Proself Enterprise/Standard Edition

> Remote attackers can bypass authentication to access the Control Panel and perform unauthorized operations in Proself mail server products.

- **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:** 18 Aug 2023
- **Updated:** 8 Oct 2024
- **Also known as:** GHSA-4g7j-qx49-cxcp

## What is CVE-2023-39415?

CVE-2023-39415 is a high-severity authentication bypass vulnerability in North Grid Corporation Proself Enterprise/Standard Edition, published on 18 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper authentication vulnerability in Proself Enterprise/Standard Edition Ver5.61 and earlier, Proself Gateway Edition Ver1.62 and earlier, and Proself Mail Sanitize Edition Ver1.07 and earlier allow a remote unauthenticated attacker to log in to the product's Control Panel and perform an unintended operation.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2023-39415?

It affects 1 product.


Products: Northgrid Proself.

## How do I fix CVE-2023-39415?

No fix has been published for CVE-2023-39415 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-39415 being exploited?

There is no known exploitation of CVE-2023-39415 in the wild and no public exploit code.

## Other vulnerabilities in North Grid Corporation Proself Enterprise/Standard Edition

- [CVE-2023-45727](https://insights.sbomify.com/CVE-2023-45727/): North Grid Proself Improper Restriction of XML External Entity (XXE) Reference (high 7.5, exploited in the wild)
- [CVE-2023-39416](https://insights.sbomify.com/CVE-2023-39416/): Command injection in Proself Enterprise/Standard Edition (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-39415 and fix it if it is affected.

What it is: CVE-2023-39415 is a high-severity authentication bypass vulnerability in North Grid Corporation Proself Enterprise/Standard Edition, published on 18 Aug 2023. 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-2023-39415 in the wild and no public exploit code.

Affected product: North Grid Corporation Proself Enterprise/Standard Edition. 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-2023-39415/ (Markdown: https://insights.sbomify.com/CVE-2023-39415/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-39415
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-39415
- OSV: https://osv.dev/vulnerability/CVE-2023-39415

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-39415/
Summaries are generated and may contain mistakes; the official description above is the record.