# CVE-2018-1443: Auth bypass in Security Access Manager

> Authenticated attackers can bypass SAML authentication to impersonate other users in IBM SSO systems without knowing their passwords.

- **Severity:** Medium 5.9 (`CVSS:3.0/A:L/AC:L/AV:L/C:L/I:L/PR:N/S:U/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Mar 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-6cj6-68x7-f44g

## What is CVE-2018-1443?

CVE-2018-1443 is a medium-severity authentication bypass vulnerability in IBM Security Access Manager, published on 8 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An XML parsing vulnerability affects IBM SAML-based single sign-on (SSO) systems (IBM Security Access Manager 9.0.0 - 9.0.4 and IBM Tivoli Federated Identity Manager 6.2 - 6.0.2.) This vulnerability can allow an attacker with authenticated access to trick SAML systems into authenticating as a different user without knowledge of the victim users password. IBM X-Force ID: 139754.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-1443?

It affects 2 products.


Products: Ibm Security Access Manager, Ibm Tivoli Federated Identity Manager.

## How do I fix CVE-2018-1443?

No fix has been published for CVE-2018-1443 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-1443 being exploited?

There is no known exploitation of CVE-2018-1443 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-2018-1443 and fix it if it is affected.

What it is: CVE-2018-1443 is a medium-severity authentication bypass vulnerability in IBM Security Access Manager, published on 8 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-1443 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-2018-1443/ (Markdown: https://insights.sbomify.com/CVE-2018-1443/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1443
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1443
- OSV: https://osv.dev/vulnerability/CVE-2018-1443

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1443/
Summaries are generated and may contain mistakes; the official description above is the record.