# CVE-2017-14117: Missing authorization in n/a

> Remote attackers can bypass authentication to access internal network hosts via an unauthenticated proxy service on specific AT&T U-verse gateways.

- **Severity:** Medium 5.9 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Sep 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-w755-mf25-fpmg

## What is CVE-2017-14117?

CVE-2017-14117 is a medium-severity missing authorization vulnerability in n/a, published on 3 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG589 and NVG599 devices, when IP Passthrough mode is not used, configures an unauthenticated proxy service on WAN TCP port 49152, which allows remote attackers to establish arbitrary TCP connections to intranet hosts by sending \x2a\xce\x01 followed by other predictable values.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2017-14117?

It affects 1 product.


Products: Att U-Verse Firmware.

## How do I fix CVE-2017-14117?

No fix has been published for CVE-2017-14117 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-14117 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-14117 exists.

Public exploit code:

- Open WAN-to-LAN proxy on AT&T routers (metasploit)

## Other vulnerabilities in n/a

- [CVE-2017-10793](https://insights.sbomify.com/CVE-2017-10793/): Hardcoded credentials in n/a (high 8.1)
- [CVE-2017-14115](https://insights.sbomify.com/CVE-2017-14115/): Hardcoded credentials in n/a (high 8.1)
- [CVE-2017-14116](https://insights.sbomify.com/CVE-2017-14116/): Hardcoded credentials in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-14117 and fix it if it is affected.

What it is: CVE-2017-14117 is a medium-severity missing authorization vulnerability in n/a, published on 3 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-14117 exists.

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-2017-14117/ (Markdown: https://insights.sbomify.com/CVE-2017-14117/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-14117
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-14117
- OSV: https://osv.dev/vulnerability/CVE-2017-14117

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-14117/
Summaries are generated and may contain mistakes; the official description above is the record.