# CVE-2020-11640: Elevation of Privilege

> An attacker with command queue access can execute arbitrary executables on the AdvaBuild node, leading to privilege escalation.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jul 2024
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6mjp-g2rf-hh5w

## What is CVE-2020-11640?

CVE-2020-11640 is a high-severity vulnerability in ABB Advant MOD 300 AdvaBuild, published on 23 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

AdvaBuild uses a command queue to launch certain operations. An attacker who gains access to the
command queue can use it to launch an attack by running any executable on the AdvaBuild node. The
executables that can be run are not limited to AdvaBuild specific executables. 

Improper Privilege Management vulnerability in ABB Advant MOD 300 AdvaBuild.This issue affects Advant MOD 300 AdvaBuild: from 3.0 through 3.7 SP2.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2020-11640?

It affects 1 product.


Products: Abb Advabuild.

## How do I fix CVE-2020-11640?

No fix has been published for CVE-2020-11640 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-11640 being exploited?

There is no known exploitation of CVE-2020-11640 in the wild and no public exploit code.

## Other vulnerabilities in ABB Advant MOD 300 AdvaBuild

- [CVE-2020-11639](https://insights.sbomify.com/CVE-2020-11639/): Insufficient access control on Inter process communication, (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-11640 and fix it if it is affected.

What it is: CVE-2020-11640 is a high-severity vulnerability in ABB Advant MOD 300 AdvaBuild, published on 23 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-11640 in the wild and no public exploit code.

Affected product: ABB Advant MOD 300 AdvaBuild. 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-2020-11640/ (Markdown: https://insights.sbomify.com/CVE-2020-11640/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-11640
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-11640
- OSV: https://osv.dev/vulnerability/CVE-2020-11640

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-11640/
Summaries are generated and may contain mistakes; the official description above is the record.