# CVE-2019-0971: Information disclosure in Azure DevOps Server

> Attackers can exploit improper sanitization in authentication requests to disclose sensitive information from Azure DevOps Server and Team Foundation Server.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:** 16 May 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-858j-7757-pwv6

## What is CVE-2019-0971?

CVE-2019-0971 is a medium-severity vulnerability in Microsoft Azure DevOps Server, published on 16 May 2019. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An information disclosure vulnerability exists when Azure DevOps Server and Microsoft Team Foundation Server do not properly sanitize a specially crafted authentication request to an affected server, aka 'Azure DevOps Server and Team Foundation Server Information Disclosure Vulnerability'.

Weakness: CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2019-0971?

It affects 2 products.


Products: Microsoft Azure Devops Server, Microsoft Team Foundation Server.

## How do I fix CVE-2019-0971?

No fix has been published for CVE-2019-0971 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-0971 being exploited?

There is no known exploitation of CVE-2019-0971 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Azure DevOps Server

- [CVE-2019-1306](https://insights.sbomify.com/CVE-2019-1306/): Code injection in Azure DevOps Server (critical 9.8)
- [CVE-2019-1072](https://insights.sbomify.com/CVE-2019-1072/): Code injection in Azure DevOps Server (critical 9.8)
- [CVE-2023-33136](https://insights.sbomify.com/CVE-2023-33136/): Azure DevOps Server Remote Code Execution Vulnerability (high 8.8)
- [CVE-2024-35266](https://insights.sbomify.com/CVE-2024-35266/): Azure DevOps Server Spoofing Vulnerability (high 7.6)
- [CVE-2024-35267](https://insights.sbomify.com/CVE-2024-35267/): Azure DevOps Server Spoofing Vulnerability (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-0971 and fix it if it is affected.

What it is: CVE-2019-0971 is a medium-severity vulnerability in Microsoft Azure DevOps Server, published on 16 May 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-2019-0971 in the wild and no public exploit code.

Affected product: Microsoft Azure DevOps Server. 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-2019-0971/ (Markdown: https://insights.sbomify.com/CVE-2019-0971/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-0971
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-0971
- OSV: https://osv.dev/vulnerability/CVE-2019-0971

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-0971/
Summaries are generated and may contain mistakes; the official description above is the record.