# CVE-2019-6543: Missing authorization in AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update

> Attackers can execute arbitrary code with runtime privileges due to missing authentication, compromising the machine.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Feb 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-pr9x-32vv-5c37

## What is CVE-2019-6543?

CVE-2019-6543 is a critical missing authorization vulnerability in ICS-CERT AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update, published on 13 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update. Code is executed under the program runtime privileges, which could lead to the compromise of the machine.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2019-6543?

It affects 2 products.


Products: Aveva Indusoft Web Studio, Aveva Intouch Machine Edition 2014.

## How do I fix CVE-2019-6543?

No fix has been published for CVE-2019-6543 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6543 being exploited?

There is no known exploitation of CVE-2019-6543 in the wild and no public exploit code.

Public exploit code:

- Indusoft Web Studio 8.1 SP2 - Remote Code Execution (exploitdb)

## Other vulnerabilities in ICS-CERT AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update

- [CVE-2018-10620](https://insights.sbomify.com/CVE-2018-10620/): Memory corruption in InTouch Machine Edition (critical 9.8)
- [CVE-2019-6545](https://insights.sbomify.com/CVE-2019-6545/): Code injection in AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6543 and fix it if it is affected.

What it is: CVE-2019-6543 is a critical missing authorization vulnerability in ICS-CERT AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update, published on 13 Feb 2019. 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-2019-6543 in the wild and no public exploit code.

Affected product: ICS-CERT AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update. 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-2019-6543/ (Markdown: https://insights.sbomify.com/CVE-2019-6543/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6543
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6543
- OSV: https://osv.dev/vulnerability/CVE-2019-6543

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-6543/
Summaries are generated and may contain mistakes; the official description above is the record.