# CVE-2008-0456: Other in n/a

> Authenticated users can inject HTTP headers via crafted filenames, enabling response splitting attacks in Apache HTTP Server.

- **Severity:** Low 2.6 (`AV:N/AC:H/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 25 Jan 2008
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2008-0456, ECHO-7efd-2f5f-a5c3, GHSA-fw9r-jq2r-wx56

## What is CVE-2008-0456?

CVE-2008-0456 is a low-severity vulnerability in Apache Http Server, published on 25 Jan 2008. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

CRLF injection vulnerability in the mod_negotiation module in the Apache HTTP Server 2.2.6 and earlier in the 2.2.x series, 2.0.61 and earlier in the 2.0.x series, and 1.3.39 and earlier in the 1.3.x series allows remote authenticated users to inject arbitrary HTTP headers and conduct HTTP response splitting attacks by uploading a file with a multi-line name containing HTTP header sequences and a file extension, which leads to injection within a (1) "406 Not Acceptable" or (2) "300 Multiple Choices" HTTP response when the extension is omitted in a request for the file.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2008-0456?

It affects 4 products.


Products: Apache Http Server, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

## How do I fix CVE-2008-0456?

Upgrade to a fixed version.

## Is CVE-2008-0456 being exploited?

There is no known exploitation of CVE-2008-0456 in the wild and no public exploit code.

## Other vulnerabilities in Apache Http Server

- [CVE-2021-42013](https://insights.sbomify.com/CVE-2021-42013/): Apache HTTP Server Path Traversal (critical 9.8, exploited in the wild)
- [CVE-2024-38475](https://insights.sbomify.com/CVE-2024-38475/): Apache HTTP Server Improper Escaping of Output (critical 9.1, exploited in the wild)
- [CVE-2021-40438](https://insights.sbomify.com/CVE-2021-40438/): Apache HTTP Server-Side Request Forgery (SSRF) (critical 9.0, exploited in the wild)
- [CVE-2019-0211](https://insights.sbomify.com/CVE-2019-0211/): Apache HTTP Server Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2021-41773](https://insights.sbomify.com/CVE-2021-41773/): Apache HTTP Server Path Traversal (high 7.5, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2008-0456 and fix it if it is affected.

What it is: CVE-2008-0456 is a low-severity vulnerability in Apache Http Server, published on 25 Jan 2008. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2008-0456 in the wild and no public exploit code.

Affected product: Apache Http Server. 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-2008-0456/ (Markdown: https://insights.sbomify.com/CVE-2008-0456/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-0456
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-0456
- OSV: https://osv.dev/vulnerability/CVE-2008-0456

---
From sbomify Insights: https://insights.sbomify.com/CVE-2008-0456/
Summaries are generated and may contain mistakes; the official description above is the record.