# CVE-2022-21940: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute in System Configuration Tool (SCT)

> Attackers can access sensitive cookies from HTTPS sessions due to missing Secure attributes, potentially compromising user sessions in Johnson Controls SCT.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Feb 2023
- **Updated:** 24 Mar 2025
- **Also known as:** GHSA-hp26-q6wq-vrfp

## What is CVE-2022-21940?

CVE-2022-21940 is a high-severity vulnerability in Johnson Controls System Configuration Tool (SCT), published on 9 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Sensitive Cookie in HTTPS Session Without 'Secure' Attribute vulnerability in Johnson Controls System Configuration Tool (SCT) version 14 prior to 14.2.3 and version 15 prior to 15.0.3 could allow access to the cookie.

Weakness: CWE-311 (Missing Encryption of Sensitive Data), CWE-614 (Sensitive Cookie in HTTPS Session Without 'Secure' Attribute)

## Which versions are affected by CVE-2022-21940?

It affects 1 product.


Products: Johnsoncontrols Metasys System Configuration Tool.

## How do I fix CVE-2022-21940?

No fix has been published for CVE-2022-21940 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-21940 being exploited?

There is no known exploitation of CVE-2022-21940 in the wild and no public exploit code.

## Other vulnerabilities in Johnson Controls System Configuration Tool (SCT)

- [CVE-2022-21939](https://insights.sbomify.com/CVE-2022-21939/): Sensitive cookie without 'HttpOnly' flag in System Configuration Tool (SCT) (high 7.5)
- [CVE-2021-36203](https://insights.sbomify.com/CVE-2021-36203/): Johnson Controls Metasys SCT Pro (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-21940 and fix it if it is affected.

What it is: CVE-2022-21940 is a high-severity vulnerability in Johnson Controls System Configuration Tool (SCT), published on 9 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-21940 in the wild and no public exploit code.

Affected product: Johnson Controls System Configuration Tool (SCT). 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-2022-21940/ (Markdown: https://insights.sbomify.com/CVE-2022-21940/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-21940
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-21940
- OSV: https://osv.dev/vulnerability/CVE-2022-21940

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-21940/
Summaries are generated and may contain mistakes; the official description above is the record.