# CVE-2006-0632: Weak cryptography in n/a

> Weak random generation in phpBB allows remote attackers to guess activation keys, enabling account takeover and unauthorized password changes.

- **Severity:** Medium 6.4 (`AV:N/AC:L/Au:N/C:P/I:P/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:** 10 Feb 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-3265-vrfj-hjqg

## What is CVE-2006-0632?

CVE-2006-0632 is a medium-severity vulnerability in Phpbb Group Phpbb, published on 10 Feb 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The gen_rand_string function in phpBB 2.0.19 uses insufficiently random data (small value space) to create the activation key ("validation ID") that is sent by e-mail when establishing a password, which makes it easier for remote attackers to obtain the key and modify passwords for existing accounts or create new accounts.

## Which versions are affected by CVE-2006-0632?

It affects 1 product.


Products: Phpbb Group Phpbb.

## How do I fix CVE-2006-0632?

No fix has been published for CVE-2006-0632 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-0632 being exploited?

There is no known exploitation of CVE-2006-0632 in the wild and no public exploit code.

## Other vulnerabilities in Phpbb Group Phpbb

- [CVE-2007-1695](https://insights.sbomify.com/CVE-2007-1695/): File upload in n/a (critical 10.0)
- [CVE-2006-6839](https://insights.sbomify.com/CVE-2006-6839/): Open redirect in n/a (critical 10.0)
- [CVE-2006-6840](https://insights.sbomify.com/CVE-2006-6840/): Other in n/a (critical 10.0)
- [CVE-2006-6841](https://insights.sbomify.com/CVE-2006-6841/): Cross-site request forgery in n/a (critical 10.0)
- [CVE-2002-2176](https://insights.sbomify.com/CVE-2002-2176/): SQL injection in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-0632 and fix it if it is affected.

What it is: CVE-2006-0632 is a medium-severity vulnerability in Phpbb Group Phpbb, published on 10 Feb 2006. 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-2006-0632 in the wild and no public exploit code.

Affected product: Phpbb Group Phpbb. 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-2006-0632/ (Markdown: https://insights.sbomify.com/CVE-2006-0632/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-0632
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-0632
- OSV: https://osv.dev/vulnerability/CVE-2006-0632

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-0632/
Summaries are generated and may contain mistakes; the official description above is the record.