# CVE-2016-10258: File upload in Advanced Secure Gateway (ASG)

> A malicious administrator can upload arbitrary files to the Symantec ASG and ProxySG management consoles, potentially leading to code execution when another admin downloads them.

- **Severity:** Medium 6.8 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Apr 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-8586-qhh3-x99v

## What is CVE-2016-10258?

CVE-2016-10258 is a medium-severity vulnerability in Symantec Corporation Advanced Secure Gateway (ASG), published on 11 Apr 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Unrestricted file upload vulnerability in the Symantec Advanced Secure Gateway (ASG) and ProxySG management consoles. A malicious appliance administrator can upload arbitrary malicious files to the management console and trick another administrator user into downloading and executing malicious code.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2016-10258?

It affects 2 products.


Products: Broadcom Advanced Secure Gateway, Broadcom Symantec Proxysg.

## How do I fix CVE-2016-10258?

No fix has been published for CVE-2016-10258 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-10258 being exploited?

There is no known exploitation of CVE-2016-10258 in the wild and no public exploit code.

Public exploit code:

- Symantec Advanced Secure Gateway (ASG) / ProxySG - Unrestricted File Upload (exploitdb)

## Other vulnerabilities in Symantec Corporation Advanced Secure Gateway (ASG)

- [CVE-2023-23952](https://insights.sbomify.com/CVE-2023-23952/): Command injection in Advanced Secure Gateway, Content Analysis (critical 9.8)
- [CVE-2018-5241](https://insights.sbomify.com/CVE-2018-5241/): Auth bypass in Advanced Secure Gateway (ASG) (critical 9.8)
- [CVE-2021-46825](https://insights.sbomify.com/CVE-2021-46825/): Other in Advance Secure Gateway and ProxySG (critical 9.1)
- [CVE-2023-23955](https://insights.sbomify.com/CVE-2023-23955/): Server-side request forgery in Advanced Secure Gateway, Content Analysis (high 8.1)
- [CVE-2023-23953](https://insights.sbomify.com/CVE-2023-23953/): Privilege escalation in Advanced Secure Gateway, Content Analysis (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-10258 and fix it if it is affected.

What it is: CVE-2016-10258 is a medium-severity vulnerability in Symantec Corporation Advanced Secure Gateway (ASG), published on 11 Apr 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2016-10258 in the wild and no public exploit code.

Affected product: Symantec Corporation Advanced Secure Gateway (ASG). 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-2016-10258/ (Markdown: https://insights.sbomify.com/CVE-2016-10258/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-10258
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-10258
- OSV: https://osv.dev/vulnerability/CVE-2016-10258

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-10258/
Summaries are generated and may contain mistakes; the official description above is the record.