# CVE-2019-11208: TIBCO API Exchange Processes OAuth Incorrectly

> Attackers can escalate privileges on specific endpoints by exploiting incorrect OAuth scope processing in TIBCO API Exchange Gateway.

- **Severity:** Medium 6.4 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`)
- **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:** 8 Aug 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-rx4w-m767-65fw

## What is CVE-2019-11208?

CVE-2019-11208 is a medium-severity authentication bypass vulnerability in TIBCO API Exchange Gateway, published on 8 Aug 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The authorization component of TIBCO Software Inc.'s TIBCO API Exchange Gateway, and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric contains a vulnerability that theoretically processes OAuth authorization incorrectly, leading to potential escalation of privileges for the specific customer endpoint, when the implementation uses multiple scopes. This issue affects: TIBCO Software Inc.'s TIBCO API Exchange Gateway version 2.3.1 and prior versions, and TIBCO API Exchange Gateway Distribution for TIBCO Silver Fabric version 2.3.1 and prior versions.

## Which versions are affected by CVE-2019-11208?

It affects 1 product.


Products: Tibco Api Exchange Gateway.

## How do I fix CVE-2019-11208?

No fix has been published for CVE-2019-11208 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-11208 being exploited?

There is no known exploitation of CVE-2019-11208 in the wild and no public exploit code.

## Other vulnerabilities in TIBCO API Exchange Gateway

- [CVE-2021-23274](https://insights.sbomify.com/CVE-2021-23274/): TIBCO API Exchange Gateway Clickjack Vulnerability (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-11208 and fix it if it is affected.

What it is: CVE-2019-11208 is a medium-severity authentication bypass vulnerability in TIBCO API Exchange Gateway, published on 8 Aug 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-11208 in the wild and no public exploit code.

Affected product: TIBCO API Exchange Gateway. 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-2019-11208/ (Markdown: https://insights.sbomify.com/CVE-2019-11208/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-11208
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-11208
- OSV: https://osv.dev/vulnerability/CVE-2019-11208

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-11208/
Summaries are generated and may contain mistakes; the official description above is the record.