# CVE-2015-4306: Auth bypass in n/a

> Remote authenticated users can bypass session restrictions and impersonate administrators by crafting URLs with discovered session identifiers.

- **Severity:** High 8.5 (`AV:N/AC:M/Au:S/C:C/I:C/A:C`)
- **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:** 20 Sep 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-gxxg-46w4-8xx4

## What is CVE-2015-4306?

CVE-2015-4306 is a high-severity authentication bypass vulnerability in n/a, published on 20 Sep 2015. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The web framework in Cisco Prime Collaboration Assurance before 10.5.1.53684-1 allows remote authenticated users to bypass intended login-session read restrictions, and impersonate administrators of arbitrary tenant domains, by discovering a session identifier and constructing a crafted URL, aka Bug IDs CSCus88343 and CSCus88334.

Weakness: CWE-264

## Which versions are affected by CVE-2015-4306?

It affects 1 product.


Products: Cisco Prime Collaboration Assurance.

## How do I fix CVE-2015-4306?

No fix has been published for CVE-2015-4306 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-4306 being exploited?

There is no known exploitation of CVE-2015-4306 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2015-6389](https://insights.sbomify.com/CVE-2015-6389/): Hardcoded credentials in n/a (critical 9.0)
- [CVE-2015-4304](https://insights.sbomify.com/CVE-2015-4304/): Missing authorization in n/a (critical 9.0)
- [CVE-2017-6659](https://insights.sbomify.com/CVE-2017-6659/): Cross-site request forgery in Cisco Prime Collaboration Assurance (high 8.8)
- [CVE-2019-1662](https://insights.sbomify.com/CVE-2019-1662/): Cisco Prime Collaboration Assurance Software Unauthenticated Access Vulnerability (high 8.2)
- [CVE-2016-1392](https://insights.sbomify.com/CVE-2016-1392/): Open redirect in n/a (high 7.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-4306 and fix it if it is affected.

What it is: CVE-2015-4306 is a high-severity authentication bypass vulnerability in n/a, published on 20 Sep 2015. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2015-4306 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-2015-4306/ (Markdown: https://insights.sbomify.com/CVE-2015-4306/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-4306
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-4306
- OSV: https://osv.dev/vulnerability/CVE-2015-4306

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-4306/
Summaries are generated and may contain mistakes; the official description above is the record.