# CVE-2015-6318: Path traversal in n/a

> Local attackers can write to arbitrary files via symlink attacks on Cisco VCS Expressway, potentially compromising system integrity.

- **Severity:** Medium 6.9 (`AV:L/AC:M/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Oct 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-c4f9-xqxp-hcrv

## What is CVE-2015-6318?

CVE-2015-6318 is a medium-severity path traversal vulnerability in n/a, published on 12 Oct 2015. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.1 and X8.5.2 allows local users to write to arbitrary files via an unspecified symlink attack, aka Bug ID CSCuv11969.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2015-6318?

It affects 1 product.


Products: Cisco Telepresence Video Communication Server Software.

## How do I fix CVE-2015-6318?

No fix has been published for CVE-2015-6318 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-6318 being exploited?

There is no known exploitation of CVE-2015-6318 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2015-4327](https://insights.sbomify.com/CVE-2015-4327/): Privilege escalation in n/a (high 7.2)
- [CVE-2015-0772](https://insights.sbomify.com/CVE-2015-0772/): Denial of service in n/a (high 7.1)
- [CVE-2014-0662](https://insights.sbomify.com/CVE-2014-0662/): Denial of service in n/a (high 7.1)
- [CVE-2015-4325](https://insights.sbomify.com/CVE-2015-4325/): Privilege escalation in n/a (medium 6.9)
- [CVE-2015-4330](https://insights.sbomify.com/CVE-2015-4330/): Command injection in n/a (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-6318 and fix it if it is affected.

What it is: CVE-2015-6318 is a medium-severity path traversal vulnerability in n/a, published on 12 Oct 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2015-6318 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-2015-6318/ (Markdown: https://insights.sbomify.com/CVE-2015-6318/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-6318
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-6318
- OSV: https://osv.dev/vulnerability/CVE-2015-6318

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-6318/
Summaries are generated and may contain mistakes; the official description above is the record.