# CVE-2021-35498: TIBCO EBX Insecure Login Mechanism

> An insecure login mechanism in TIBCO EBX allows attackers to bypass authentication by entering an incorrect password, leading to unauthorized access.

- **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 Oct 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-9v4m-78rp-fgv2

## What is CVE-2021-35498?

CVE-2021-35498 is a critical authentication bypass vulnerability in TIBCO EBX, published on 13 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The TIBCO EBX Web Server component of TIBCO Software Inc.'s TIBCO EBX, TIBCO EBX, TIBCO EBX, and TIBCO Product and Service Catalog powered by TIBCO EBX contains a vulnerability that under certain specific conditions allows an attacker to enter a password other than the legitimate password and it will be accepted as valid. Affected releases are TIBCO Software Inc.'s TIBCO EBX: versions 5.8.123 and below, TIBCO EBX: versions 5.9.3, 5.9.4, 5.9.5, 5.9.6, 5.9.7, 5.9.8, 5.9.9, 5.9.10, 5.9.11, 5.9.12, 5.9.13, and 5.9.14, TIBCO EBX: versions 6.0.0 and 6.0.1, and TIBCO Product and Service Catalog powered by TIBCO EBX: version 1.0.0.

Weakness: CWE-521 (Weak Password Requirements)

## Which versions are affected by CVE-2021-35498?

It affects 2 products.


Products: Tibco Ebx, Tibco Product and Service Catalog Powered by Tibco Ebx.

## How do I fix CVE-2021-35498?

No fix has been published for CVE-2021-35498 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-35498 being exploited?

There is no known exploitation of CVE-2021-35498 in the wild and no public exploit code.

## Other vulnerabilities in TIBCO EBX

- [CVE-2019-17330](https://insights.sbomify.com/CVE-2019-17330/): TIBCO EBX Exposes Multiple Cross-Site Scripting Vulnerabilities (high 8.8)
- [CVE-2023-26222](https://insights.sbomify.com/CVE-2023-26222/): TIBCO EBX Cross-site Scripting (XXS) Vulnerability (high 8.7)
- [CVE-2022-41565](https://insights.sbomify.com/CVE-2022-41565/): TIBCO EBX Cross Site Scripting (XSS) Vulnerability (high 8.7)
- [CVE-2022-30577](https://insights.sbomify.com/CVE-2022-30577/): TIBCO EBX Stored XSS vulnerability (high 8.0)
- [CVE-2022-22769](https://insights.sbomify.com/CVE-2022-22769/): TIBCO EBX vulnerabilities (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-35498 and fix it if it is affected.

What it is: CVE-2021-35498 is a critical authentication bypass vulnerability in TIBCO EBX, published on 13 Oct 2021. 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-2021-35498 in the wild and no public exploit code.

Affected product: TIBCO EBX. 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-2021-35498/ (Markdown: https://insights.sbomify.com/CVE-2021-35498/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-35498
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-35498
- OSV: https://osv.dev/vulnerability/CVE-2021-35498

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-35498/
Summaries are generated and may contain mistakes; the official description above is the record.