# CVE-2024-23749: Command injection in n/a

> Attackers can execute arbitrary code via command injection in KiTTY SSH client due to insufficient input sanitization in filename handling.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 9 Feb 2024
- **Updated:** 15 May 2025
- **Also known as:** GHSA-5frx-8vj6-294f

## What is CVE-2024-23749?

CVE-2024-23749 is a high-severity command injection vulnerability in n/a, published on 9 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

KiTTY versions 0.76.1.13 and before is vulnerable to command injection via the filename variable, occurs due to insufficient input sanitization and validation, failure to escape special characters, and insecure system calls (at lines 2369-2390). This allows an attacker to add inputs inside the filename variable, leading to arbitrary code execution.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2024-23749?

It affects 1 product.


Products: 9bis Kitty.

## How do I fix CVE-2024-23749?

No fix has been published for CVE-2024-23749 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-23749 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-23749 exists.

Public exploit code:

- KiTTY 0.76.1.13 - Command Injection (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2016-2563](https://insights.sbomify.com/CVE-2016-2563/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-25003](https://insights.sbomify.com/CVE-2024-25003/): Memory corruption in n/a (high 7.8)
- [CVE-2024-25004](https://insights.sbomify.com/CVE-2024-25004/): Memory corruption in n/a (high 7.8)
- [CVE-2023-48795](https://insights.sbomify.com/CVE-2023-48795/): Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-23749 and fix it if it is affected.

What it is: CVE-2024-23749 is a high-severity command injection vulnerability in n/a, published on 9 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-23749 exists.

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-2024-23749/ (Markdown: https://insights.sbomify.com/CVE-2024-23749/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-23749
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-23749
- OSV: https://osv.dev/vulnerability/CVE-2024-23749

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-23749/
Summaries are generated and may contain mistakes; the official description above is the record.