# CVE-2009-4655: Auth bypass in n/a

> Remote attackers can hijack user sessions in Novell eDirectory by exploiting predictable session cookies, leading to unauthorized account access.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Feb 2010
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-g533-rphg-9fjx

## What is CVE-2009-4655?

CVE-2009-4655 is a high-severity authentication bypass vulnerability in Novell Edirectory, published on 26 Feb 2010. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The dhost web service in Novell eDirectory 8.8.5 uses a predictable session cookie, which makes it easier for remote attackers to hijack sessions via a modified cookie.

Weakness: CWE-310

## Which versions are affected by CVE-2009-4655?

It affects 1 product.


Products: Novell Edirectory.

## How do I fix CVE-2009-4655?

No fix has been published for CVE-2009-4655 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-4655 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-4655 exists.

Public exploit code:

- Novell eDirectory 8.8.5 - DHost Weak Session Cookie Session Hijacking (Metasploit) (exploitdb)
- Novell eDirectory DHOST Predictable Session Cookie (metasploit)

## Other vulnerabilities in Novell Edirectory

- [CVE-2009-0895](https://insights.sbomify.com/CVE-2009-0895/): Integer overflow in n/a (critical 10.0)
- [CVE-2008-5091](https://insights.sbomify.com/CVE-2008-5091/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-5092](https://insights.sbomify.com/CVE-2008-5092/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-5094](https://insights.sbomify.com/CVE-2008-5094/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-4478](https://insights.sbomify.com/CVE-2008-4478/): Integer overflow in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-4655 and fix it if it is affected.

What it is: CVE-2009-4655 is a high-severity authentication bypass vulnerability in Novell Edirectory, published on 26 Feb 2010. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-4655 exists.

Affected product: Novell Edirectory. 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-2009-4655/ (Markdown: https://insights.sbomify.com/CVE-2009-4655/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-4655
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-4655
- OSV: https://osv.dev/vulnerability/CVE-2009-4655

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-4655/
Summaries are generated and may contain mistakes; the official description above is the record.