# CVE-2012-2735: Auth bypass in n/a

> Remote attackers can hijack web sessions in Cumin via crafted cookies, requiring user interaction to set the session.

- **Severity:** Medium 4.9 (`AV:N/AC:M/Au:S/C:P/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 28 Sep 2012
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-v52c-pgx4-3c8m

## What is CVE-2012-2735?

CVE-2012-2735 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Mrg, published on 28 Sep 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Session fixation vulnerability in Cumin before 0.1.5444, as used in Red Hat Enterprise Messaging, Realtime, and Grid (MRG) 2.0, allows remote attackers to hijack web sessions via a crafted session cookie.

## Which versions are affected by CVE-2012-2735?

It affects 2 products.


Products: Redhat Enterprise Mrg, Trevor Mckay Cumin.

## How do I fix CVE-2012-2735?

Upgrade to a fixed version.

## Is CVE-2012-2735 being exploited?

There is no known exploitation of CVE-2012-2735 in the wild and no public exploit code.

## Other vulnerabilities in Redhat Enterprise Mrg

- [CVE-2012-3460](https://insights.sbomify.com/CVE-2012-3460/): Hardcoded credentials in cumin (critical 9.8)
- [CVE-2013-4461](https://insights.sbomify.com/CVE-2013-4461/): SQL injection in n/a (high 7.5)
- [CVE-2012-2684](https://insights.sbomify.com/CVE-2012-2684/): SQL injection in n/a (high 7.5)
- [CVE-2010-4179](https://insights.sbomify.com/CVE-2010-4179/): Missing authorization in n/a (high 7.5)
- [CVE-2013-4405](https://insights.sbomify.com/CVE-2013-4405/): Cross-site request forgery in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-2735 and fix it if it is affected.

What it is: CVE-2012-2735 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Mrg, published on 28 Sep 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2012-2735 in the wild and no public exploit code.

Affected product: Redhat Enterprise Mrg. 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-2012-2735/ (Markdown: https://insights.sbomify.com/CVE-2012-2735/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-2735
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-2735
- OSV: https://osv.dev/vulnerability/CVE-2012-2735

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-2735/
Summaries are generated and may contain mistakes; the official description above is the record.