# CVE-2007-4560: Command injection in n/a

> Remote attackers can execute arbitrary commands in ClamAV's milter when black hole mode is enabled, due to improper handling of recipient fields.

- **Severity:** High 7.6 (`AV:N/AC:H/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:** Yes
- **Published:** 28 Aug 2007
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2007-4560, GHSA-86rv-pvv7-jwp8

## What is CVE-2007-4560?

CVE-2007-4560 is a high-severity command injection vulnerability in Clam Anti-Virus Clamav, published on 28 Aug 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

clamav-milter in ClamAV before 0.91.2, when run in black hole mode, allows remote attackers to execute arbitrary commands via shell metacharacters that are used in a certain popen call, involving the "recipient field of sendmail."

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2007-4560?

It affects 1 product.


Products: Clam Anti-Virus Clamav.

## How do I fix CVE-2007-4560?

Upgrade to a fixed version.

## Is CVE-2007-4560 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4560 exists.

Public exploit code:

- Python RCE exploit for Sendmail with ClamAV-Milter <0.91.2 (CVE-2007-4560). Remote root command injection via SMTP RCPT TO headers. (github_poc): https://github.com/Strikoder-Premium/sendmail-clamav-exploit-CVE-2007-4560
- ClamAV Milter 0.92.2 - Blackhole-Mode (Sendmail) Code Execution (Metasploit) (exploitdb)
- ClamAV Milter Blackhole-Mode Remote Code Execution (metasploit)
- Sendmail with clamav-milter < 0.91.2 - Remote Command Execution (exploitdb)
- ClamAV Milter - Blackhole-Mode Remote Code Execution (Metasploit) (exploitdb)
- Exploit for CVE-2007-4560 (ClamAV Milter Sendmail 0.91.2 Remote Code Execution) (github_poc): https://github.com/0x1sac/ClamAV-Milter-Sendmail-0.91.2-Remote-Code-Execution

## Other vulnerabilities in Clam Anti-Virus Clamav

- [CVE-2008-1100](https://insights.sbomify.com/CVE-2008-1100/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-0318](https://insights.sbomify.com/CVE-2008-0318/): Integer overflow in n/a (critical 10.0)
- [CVE-2007-6337](https://insights.sbomify.com/CVE-2007-6337/): Unspecified vulnerability in the bzip2 decompression algorithm in nsis/bzlib_private.h in ClamAV before 0.92 has unknown impact and remote attack vectors. (critical 10.0)
- [CVE-2007-3023](https://insights.sbomify.com/CVE-2007-3023/): Memory corruption in n/a (critical 10.0)
- [CVE-2005-3587](https://insights.sbomify.com/CVE-2005-3587/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-4560 and fix it if it is affected.

What it is: CVE-2007-4560 is a high-severity command injection vulnerability in Clam Anti-Virus Clamav, published on 28 Aug 2007. 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-2007-4560 exists.

Affected product: Clam Anti-Virus Clamav. 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-2007-4560/ (Markdown: https://insights.sbomify.com/CVE-2007-4560/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-4560
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-4560
- OSV: https://osv.dev/vulnerability/CVE-2007-4560

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-4560/
Summaries are generated and may contain mistakes; the official description above is the record.