# CVE-2012-2104: Command injection in n/a

> Remote attackers can execute arbitrary commands or delete files via crafted HTTP requests if a user views malicious logs in a terminal.

- **Severity:** Medium 6.8 (`AV:N/AC:M/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 26 Aug 2012
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2012-2104, GHSA-3pm4-hp5q-g8qj

## What is CVE-2012-2104?

CVE-2012-2104 is a medium-severity command injection vulnerability in n/a, published on 26 Aug 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

cgi-bin/munin-cgi-graph in Munin 2.x writes data to a log file without sanitizing non-printable characters, which might allow user-assisted remote attackers to inject terminal emulator escape sequences and execute arbitrary commands or delete arbitrary files via a crafted HTTP request.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2012-2104?

It affects 1 product.


Products: Munin-Monitoring Munin.

## How do I fix CVE-2012-2104?

Upgrade to a fixed version.

## Is CVE-2012-2104 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-2104 exists.

Public exploit code:

- Munin 2.0~rc4-1 - Remote Command Injection (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2012-3513](https://insights.sbomify.com/CVE-2012-3513/): Missing authorization in n/a (critical 9.3)
- [CVE-2012-3512](https://insights.sbomify.com/CVE-2012-3512/): Privilege escalation in n/a (high 7.2)
- [CVE-2013-6048](https://insights.sbomify.com/CVE-2013-6048/): Denial of service in n/a (medium 5.0)
- [CVE-2012-2147](https://insights.sbomify.com/CVE-2012-2147/): Denial of service in n/a (medium 5.0)
- [CVE-2012-4678](https://insights.sbomify.com/CVE-2012-4678/): Denial of service in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-2104 and fix it if it is affected.

What it is: CVE-2012-2104 is a medium-severity command injection vulnerability in n/a, published on 26 Aug 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-2104 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-2012-2104/ (Markdown: https://insights.sbomify.com/CVE-2012-2104/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-2104
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-2104
- OSV: https://osv.dev/vulnerability/CVE-2012-2104

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-2104/
Summaries are generated and may contain mistakes; the official description above is the record.