# CVE-2002-0628: Auth bypass in n/a

> Remote attackers can brute force Telnet credentials on Polycom ViewStation devices due to missing login attempt limits, leading to unauthorized access.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Jan 2003
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-mqh7-fvwx-6qg3

## What is CVE-2002-0628?

CVE-2002-0628 is a high-severity authentication bypass vulnerability in n/a, published on 3 Jan 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Telnet service for Polycom ViewStation before 7.2.4 does not restrict the number of failed login attempts, which makes it easier for remote attackers to guess usernames and passwords via a brute force attack.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts)

## Which versions are affected by CVE-2002-0628?

It affects 8 products.


Products: Polycom Viewstation 128, Polycom Viewstation 512, Polycom Viewstation Dcp, Polycom Viewstation Fx Vs4000, Polycom Viewstation H.323, Polycom Viewstation Mp, Polycom Viewstation Sp 384, Polycom Viewstation V.35.

## How do I fix CVE-2002-0628?

No fix has been published for CVE-2002-0628 yet. Limit exposure of the affected software until one is available.

## Is CVE-2002-0628 being exploited?

There is no known exploitation of CVE-2002-0628 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2002-0626](https://insights.sbomify.com/CVE-2002-0626/): Hardcoded credentials in n/a (critical 10.0)
- [CVE-2002-0627](https://insights.sbomify.com/CVE-2002-0627/): Auth bypass in n/a (high 7.5)
- [CVE-2002-0630](https://insights.sbomify.com/CVE-2002-0630/): Denial of service in n/a (medium 5.0)
- [CVE-2002-0629](https://insights.sbomify.com/CVE-2002-0629/): Denial of service in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2002-0628 and fix it if it is affected.

What it is: CVE-2002-0628 is a high-severity authentication bypass vulnerability in n/a, published on 3 Jan 2003. 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-2002-0628 in the wild and no public exploit code.

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-2002-0628/ (Markdown: https://insights.sbomify.com/CVE-2002-0628/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2002-0628
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2002-0628
- OSV: https://osv.dev/vulnerability/CVE-2002-0628

---
From sbomify Insights: https://insights.sbomify.com/CVE-2002-0628/
Summaries are generated and may contain mistakes; the official description above is the record.