# CVE-2009-2765: Command injection in n/a

> Remote attackers can execute arbitrary commands on DD-WRT routers via shell metacharacters in CGI requests, requiring immediate firmware updates.

- **Severity:** High 8.3 (`AV:A/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Aug 2009
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-p3rr-cvjw-cgxr

## What is CVE-2009-2765?

CVE-2009-2765 is a high-severity command injection vulnerability in n/a, published on 14 Aug 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build 12533, allows remote attackers to execute arbitrary commands via shell metacharacters in a request to a cgi-bin/ URI.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2009-2765?

It affects 1 product.


Products: Dd-Wrt Dd-Wrt.

## How do I fix CVE-2009-2765?

No fix has been published for CVE-2009-2765 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-2765 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2765 exists.

Public exploit code:

- DD-WRT HTTP v24-SP1 - Command Injection (exploitdb)
- DD-WRT HTTPd Daemon/Service - Remote Command Execution (exploitdb)
- DD-WRT HTTP Daemon Arbitrary Command Execution (metasploit)
- DD-WRT HTTPd Daemon/Service - Arbitrary Command Execution (Metasploit) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2021-27137](https://insights.sbomify.com/CVE-2021-27137/): DD-WRT Stack-Based Buffer Overflow (high 8.1, exploited in the wild)
- [CVE-2020-13976](https://insights.sbomify.com/CVE-2020-13976/): Command injection in n/a (high 8.8)
- [CVE-2012-6297](https://insights.sbomify.com/CVE-2012-6297/): Command injection in n/a (high 8.8)
- [CVE-2009-2766](https://insights.sbomify.com/CVE-2009-2766/): Missing authorization in n/a (high 7.5)
- [CVE-2008-6974](https://insights.sbomify.com/CVE-2008-6974/): Cross-site request forgery in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-2765 and fix it if it is affected.

What it is: CVE-2009-2765 is a high-severity command injection vulnerability in n/a, published on 14 Aug 2009. 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-2009-2765 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-2009-2765/ (Markdown: https://insights.sbomify.com/CVE-2009-2765/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-2765
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-2765
- OSV: https://osv.dev/vulnerability/CVE-2009-2765

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-2765/
Summaries are generated and may contain mistakes; the official description above is the record.