# CVE-2023-2991: Fortra Globalscape Administration Server Information Disclosure

> Attackers can remotely obtain the hard drive serial number of the server running Fortra Globalscape EFT via a trial extension request.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/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:** 22 Jun 2023
- **Updated:** 6 Dec 2024
- **Also known as:** GHSA-36c8-63rj-g7xv

## What is CVE-2023-2991?

CVE-2023-2991 is a medium-severity vulnerability in Fortra Globalscape EFT, published on 22 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Fortra Globalscape EFT's administration server suffers from an information disclosure vulnerability where the serial number of the harddrive that Globalscape is installed on can be remotely determined via a "trial extension request" message

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2023-2991?

It affects 1 product.


Products: Globalscape Eft Server.

## How do I fix CVE-2023-2991?

No fix has been published for CVE-2023-2991 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2991 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2991 exists.

## Other vulnerabilities in Fortra Globalscape EFT

- [CVE-2023-2989](https://insights.sbomify.com/CVE-2023-2989/): Fortra Globalscape Administration Server Out of Bounds Memory Read (critical 9.1)
- [CVE-2023-2990](https://insights.sbomify.com/CVE-2023-2990/): Fortra Globalscape Administration Server Denial of Service (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2991 and fix it if it is affected.

What it is: CVE-2023-2991 is a medium-severity vulnerability in Fortra Globalscape EFT, published on 22 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2991 exists.

Affected product: Fortra Globalscape EFT. 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-2023-2991/ (Markdown: https://insights.sbomify.com/CVE-2023-2991/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2991
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2991
- OSV: https://osv.dev/vulnerability/CVE-2023-2991

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2991/
Summaries are generated and may contain mistakes; the official description above is the record.