# CVE-2000-1022: Security feature bypass in n/a

> Remote attackers can bypass SMTP command restrictions in Cisco Secure PIX Firewall by sending a DATA command first, allowing execution of restricted commands.

- **Severity:** High 7.5 (`AV:N/AC:L/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:** Not needed
- **Fix available:** No
- **Published:** 22 Jan 2001
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-gv87-wvw4-8qwm

## What is CVE-2000-1022?

CVE-2000-1022 is a high-severity vulnerability in n/a, published on 22 Jan 2001. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows remote attackers to execute restricted commands by sending a DATA command before sending the restricted commands.

## Which versions are affected by CVE-2000-1022?

It affects 1 product.


Products: Cisco Pix Firewall Software.

## How do I fix CVE-2000-1022?

No fix has been published for CVE-2000-1022 yet. Limit exposure of the affected software until one is available.

## Is CVE-2000-1022 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2000-1022 exists.

Public exploit code:

- Cisco PIX Firewall 4.x/5.x - SMTP Content Filtering Evasion (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2002-2139](https://insights.sbomify.com/CVE-2002-2139/): Auth bypass in n/a (medium 6.4)
- [CVE-2002-2140](https://insights.sbomify.com/CVE-2002-2140/): Memory corruption in n/a (medium 5.0)
- [CVE-2000-1027](https://insights.sbomify.com/CVE-2000-1027/): Information disclosure in n/a (medium 5.0)
- [CVE-1999-0158](https://insights.sbomify.com/CVE-1999-0158/): Path traversal in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2000-1022 and fix it if it is affected.

What it is: CVE-2000-1022 is a high-severity vulnerability in n/a, published on 22 Jan 2001. 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-2000-1022 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-2000-1022/ (Markdown: https://insights.sbomify.com/CVE-2000-1022/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2000-1022
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2000-1022
- OSV: https://osv.dev/vulnerability/CVE-2000-1022

---
From sbomify Insights: https://insights.sbomify.com/CVE-2000-1022/
Summaries are generated and may contain mistakes; the official description above is the record.