# CVE-2018-16946: Missing authorization in n/a

> Unauthenticated attackers can download backup files containing admin credentials and configuration data from LG smart network cameras.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 12 Sep 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-5272-pf3m-mjf3

## What is CVE-2018-16946?

CVE-2018-16946 is a high-severity missing authorization vulnerability in n/a, published on 12 Sep 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

LG LNB*, LND*, LNU*, and LNV* smart network camera devices have broken access control. Attackers are able to download /updownload/t.report (aka Log & Report) files and download backup files (via download.php) without authenticating. These backup files contain user credentials and configuration information for the camera device. An attacker is able to discover the backup filename via reading the system logs or report data, or just by brute-forcing the backup filename pattern. It may be possible to authenticate to the admin account with the admin password.

Weakness: CWE-552 (Files or Directories Accessible to External Parties)

## Which versions are affected by CVE-2018-16946?

It affects 18 products.


Products: Lg Lnb5110 Firmware, Lg Lnb5320 Firmware, Lg Lnb5320r Firmware, Lg Lnb7210 Firmware, Lg Lnd3230r Firmware, Lg Lnd5110 Firmware, Lg Lnd5110r Firmware, Lg Lnd5220r Firmware, Lg Lnd7210 Firmware, Lg Lnd7210r Firmware, Lg Lnu3230r Firmware, Lg Lnu5110r Firmware, Lg Lnu5320r Firmware, Lg Lnu7210r Firmware, Lg Lnv5110r Firmware, Lg Lnv5320r Firmware, Lg Lnv7210 Firmware, Lg Lnv7210r Firmware.

## How do I fix CVE-2018-16946?

No fix has been published for CVE-2018-16946 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-16946 being exploited?

There is no known exploitation of CVE-2018-16946 in the wild and no public exploit code.

Public exploit code:

- LG Smart IP Camera 1508190 - Backup File Download (exploitdb)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-16946 and fix it if it is affected.

What it is: CVE-2018-16946 is a high-severity missing authorization vulnerability in n/a, published on 12 Sep 2018. 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-2018-16946 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-2018-16946/ (Markdown: https://insights.sbomify.com/CVE-2018-16946/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-16946
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-16946
- OSV: https://osv.dev/vulnerability/CVE-2018-16946

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-16946/
Summaries are generated and may contain mistakes; the official description above is the record.