# CVE-2019-4150: Security feature bypass in Security Access Manager

> Attackers can spoof trusted entities via man-in-the-middle attacks due to improper certificate validation in IBM Security Access Manager.

- **Severity:** Low 3.7 (`CVSS:3.0/C:L/AV:N/S:U/I:N/UI:N/AC:H/A:N/PR:N/RL:O/RC:C/E:U`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Jun 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-fq3j-gh2w-h7h5

## What is CVE-2019-4150?

CVE-2019-4150 is a low-severity vulnerability in IBM Security Access Manager, published on 25 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM Security Access Manager 9.0.1 through 9.0.6 does not validate, or incorrectly validates, a certificate which could allow an attacker to spoof a trusted entity by using a man-in-the-middle (MITM) attack. IBM X-Force ID: 158510.

Weakness: CWE-295 (Improper Certificate Validation)

## Which versions are affected by CVE-2019-4150?

It affects 1 product.


Products: Ibm Security Access Manager.

## How do I fix CVE-2019-4150?

No fix has been published for CVE-2019-4150 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-4150 being exploited?

There is no known exploitation of CVE-2019-4150 in the wild and no public exploit code.

## Other vulnerabilities in IBM Security Access Manager

- [CVE-2018-1722](https://insights.sbomify.com/CVE-2018-1722/): Code injection in Security Access Manager Appliance (critical 10.0)
- [CVE-2016-3028](https://insights.sbomify.com/CVE-2016-3028/): Command injection in n/a (critical 9.1)
- [CVE-2018-1850](https://insights.sbomify.com/CVE-2018-1850/): Missing authorization in Security Access Manager Appliance (high 8.8)
- [CVE-2016-3025](https://insights.sbomify.com/CVE-2016-3025/): Security feature bypass in n/a (high 8.1)
- [CVE-2023-30997](https://insights.sbomify.com/CVE-2023-30997/): IBM Security Access Manager Docker privilege escalation (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-4150 and fix it if it is affected.

What it is: CVE-2019-4150 is a low-severity vulnerability in IBM Security Access Manager, published on 25 Jun 2019. 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-2019-4150 in the wild and no public exploit code.

Affected product: IBM Security Access Manager. 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-2019-4150/ (Markdown: https://insights.sbomify.com/CVE-2019-4150/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-4150
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-4150
- OSV: https://osv.dev/vulnerability/CVE-2019-4150

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-4150/
Summaries are generated and may contain mistakes; the official description above is the record.