# CVE-2023-32987: Jenkins Reverse Proxy Auth Plugin cross-site request forgery vulnerability

> Attackers can force users to connect to malicious LDAP servers via CSRF, potentially exposing credentials or bypassing authentication in Jenkins.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 16 May 2023
- **Updated:** 23 Jan 2025
- **Also known as:** GHSA-pmmr-r9v2-59p8

## What is CVE-2023-32987?

CVE-2023-32987 is a high-severity vulnerability in Jenkins Reverse Proxy Auth Plugin, published on 16 May 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A cross-site request forgery (CSRF) vulnerability in Jenkins Reverse Proxy Auth Plugin 1.7.4 and earlier allows attackers to connect to an attacker-specified LDAP server using attacker-specified credentials.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2023-32987?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:reverse-proxy-auth-plugin. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:reverse-proxy-auth-plugin` | Maven | All versions | 1.7.5 |
| `org.jenkins-ci.plugins:reverse-proxy-auth-plugin` | Maven | All versions | 1.7.5 |

Products: Jenkins Reverse Proxy Auth.

## How do I fix CVE-2023-32987?

Upgrade org.jenkins-ci.plugins:reverse-proxy-auth-plugin to 1.7.5 or later.

## Is CVE-2023-32987 being exploited?

There is no known exploitation of CVE-2023-32987 in the wild and no public exploit code.

## Other vulnerabilities in Jenkins Reverse Proxy Auth Plugin

- [CVE-2022-45384](https://insights.sbomify.com/CVE-2022-45384/): Jenkins Reverse Proxy Auth Plugin vulnerable due to plaintext storage of passwords (medium 6.5)
- [CVE-2018-1000150](https://insights.sbomify.com/CVE-2018-1000150/): Jenkins Reverse Proxy Auth Plugin allows attackers with local file system access to obtain a list of authorities for logged in users (low 3.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-32987 and fix it if it is affected.

What it is: CVE-2023-32987 is a high-severity vulnerability in Jenkins Reverse Proxy Auth Plugin, published on 16 May 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-32987 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:reverse-proxy-auth-plugin (Maven): affected all versions; fixed in 1.7.5
- org.jenkins-ci.plugins:reverse-proxy-auth-plugin (Maven): affected all versions; fixed in 1.7.5

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-2023-32987/ (Markdown: https://insights.sbomify.com/CVE-2023-32987/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-32987
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-32987
- OSV: https://osv.dev/vulnerability/CVE-2023-32987

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-32987/
Summaries are generated and may contain mistakes; the official description above is the record.