# CVE-2018-18571: Auth bypass in n/a

> Attackers can impersonate enrolled devices to perform unauthorized actions in Citrix XenMobile Server, requiring immediate patching.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Jun 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-7jjf-xpvq-grpr

## What is CVE-2018-18571?

CVE-2018-18571 is a critical authentication bypass vulnerability in n/a, published on 5 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An Incorrect Access Control vulnerability has been identified in Citrix XenMobile Server 10.8.0 before Rolling Patch 6 and 10.9.0 before Rolling Patch 3. An attacker can impersonate and take actions on behalf of any Mobile Application Management (MAM) enrolled device.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-18571?

It affects 1 product.


Products: Citrix Xenmobile Server.

## How do I fix CVE-2018-18571?

No fix has been published for CVE-2018-18571 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-18571 being exploited?

There is no known exploitation of CVE-2018-18571 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-8211](https://insights.sbomify.com/CVE-2020-8211/): SQL injection in Citrix XenMobile Server (critical 9.8)
- [CVE-2020-8212](https://insights.sbomify.com/CVE-2020-8212/): Missing authorization in Citrix XenMobile Server (critical 9.8)
- [CVE-2018-10648](https://insights.sbomify.com/CVE-2018-10648/): File upload in n/a (critical 9.8)
- [CVE-2018-10653](https://insights.sbomify.com/CVE-2018-10653/): XML external entity in n/a (critical 9.8)
- [CVE-2021-44519](https://insights.sbomify.com/CVE-2021-44519/): Path traversal in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-18571 and fix it if it is affected.

What it is: CVE-2018-18571 is a critical authentication bypass vulnerability in n/a, published on 5 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-2018-18571 in the wild and no public exploit code.

Affected product: n/a. 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-2018-18571/ (Markdown: https://insights.sbomify.com/CVE-2018-18571/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-18571
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-18571
- OSV: https://osv.dev/vulnerability/CVE-2018-18571

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-18571/
Summaries are generated and may contain mistakes; the official description above is the record.