# CVE-2002-0757: Auth bypass in n/a

> Attackers can bypass authentication and gain privileges in Webmin or Usermin by injecting control characters when password timeouts are enabled.

- **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:** 26 Jul 2002
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-rhfc-54hm-rr6c

## What is CVE-2002-0757?

CVE-2002-0757 is a high-severity authentication bypass vulnerability in Webmin Webmin, published on 26 Jul 2002. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

(1) Webmin 0.96 and (2) Usermin 0.90 with password timeouts enabled allow local and possibly remote attackers to bypass authentication and gain privileges via certain control characters in the authentication information, which can force Webmin or Usermin to accept arbitrary username/session ID combinations.

## Which versions are affected by CVE-2002-0757?

It affects 2 products.


Products: Usermin Usermin, Webmin Webmin.

## How do I fix CVE-2002-0757?

No fix has been published for CVE-2002-0757 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-0757 being exploited?

There is no known exploitation of CVE-2002-0757 in the wild and no public exploit code.

## Other vulnerabilities in Webmin Webmin

- [CVE-2005-1177](https://insights.sbomify.com/CVE-2005-1177/): Unknown vulnerability in (1) Webmin and (2) Usermin before 1.200 causes Webmin to change permissions and ownership of configuration files, with unknown impact. (critical 10.0)
- [CVE-2005-3042](https://insights.sbomify.com/CVE-2005-3042/): Auth bypass in n/a (high 7.5)
- [CVE-2004-1468](https://insights.sbomify.com/CVE-2004-1468/): Command injection in n/a (high 7.5)
- [CVE-2002-0756](https://insights.sbomify.com/CVE-2002-0756/): Cross-site scripting in n/a (high 7.5)
- [CVE-2006-4542](https://insights.sbomify.com/CVE-2006-4542/): Cross-site scripting in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2002-0757 and fix it if it is affected.

What it is: CVE-2002-0757 is a high-severity authentication bypass vulnerability in Webmin Webmin, published on 26 Jul 2002. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2002-0757 in the wild and no public exploit code.

Affected product: Webmin Webmin. 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-2002-0757/ (Markdown: https://insights.sbomify.com/CVE-2002-0757/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-0757
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-0757
- OSV: https://osv.dev/vulnerability/CVE-2002-0757

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-0757/
Summaries are generated and may contain mistakes; the official description above is the record.