# CVE-2015-6357: Security feature bypass in n/a

> Man-in-the-middle attackers can bypass certificate validation during rule updates to execute arbitrary code on Cisco FireSIGHT Management Center.

- **Severity:** Medium 6.8 (`AV:N/AC:M/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Nov 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-8j79-x4hx-j6c3

## What is CVE-2015-6357?

CVE-2015-6357 is a medium-severity vulnerability in n/a, published on 18 Nov 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The rule-update feature in Cisco FireSIGHT Management Center (MC) 5.2 through 5.4.0.1 does not verify the X.509 certificate of the support.sourcefire.com SSL server, which allows man-in-the-middle attackers to spoof this server and provide an invalid package, and consequently execute arbitrary code, via a crafted certificate, aka Bug ID CSCuw06444.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2015-6357?

It affects 1 product.


Products: Cisco Firesight System Software.

## How do I fix CVE-2015-6357?

No fix has been published for CVE-2015-6357 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-6357 being exploited?

There is no known exploitation of CVE-2015-6357 in the wild and no public exploit code.

Public exploit code:

- Exploit for CVE-2015-6357 Cisco FireSIGHT Management Center Certificate Validation Vulnerability (github_poc): https://github.com/mattimustang/firepwner

## Other vulnerabilities in n/a

- [CVE-2016-6394](https://insights.sbomify.com/CVE-2016-6394/): Auth bypass in n/a (critical 9.1)
- [CVE-2015-6335](https://insights.sbomify.com/CVE-2015-6335/): Privilege escalation in n/a (critical 9.0)
- [CVE-2016-6417](https://insights.sbomify.com/CVE-2016-6417/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2016-1394](https://insights.sbomify.com/CVE-2016-1394/): Hardcoded credentials in n/a (high 8.6)
- [CVE-2017-6766](https://insights.sbomify.com/CVE-2017-6766/): Security feature bypass in Cisco Firepower System Software (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-6357 and fix it if it is affected.

What it is: CVE-2015-6357 is a medium-severity vulnerability in n/a, published on 18 Nov 2015. 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-2015-6357 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-2015-6357/ (Markdown: https://insights.sbomify.com/CVE-2015-6357/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-6357
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-6357
- OSV: https://osv.dev/vulnerability/CVE-2015-6357

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-6357/
Summaries are generated and may contain mistakes; the official description above is the record.