# CVE-2022-31087: Incorrect Default Permissions in ldap-account-manager

> An attacker with file write access can upload a PHP web shell to the tmp directory, leading to remote code execution on the host.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 27 Jun 2022
- **Updated:** 23 Apr 2025
- **Also known as:** DEBIAN-CVE-2022-31087, GHSA-q8g5-45m4-q95p, UBUNTU-CVE-2022-31087

## What is CVE-2022-31087?

CVE-2022-31087 is a high-severity vulnerability in Debian Debian Linux, published on 27 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. In versions prior to 8.0 the tmp directory, which is accessible by /lam/tmp/, allows interpretation of .php (and .php5/.php4/.phpt/etc) files. An attacker capable of writing files under www-data privileges can write a web-shell into this directory, and gain a Code Execution on the host. This issue has been fixed in version 8.0. Users unable to upgrade should disallow executing PHP scripts in (/var/lib/ldap-account-manager/)tmp directory.

Weakness: CWE-863 (Incorrect Authorization), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2022-31087?

It affects 2 products.


Products: Debian Debian Linux, Ldap-Account-Manager Ldap Account Manager.

## How do I fix CVE-2022-31087?

Upgrade to a fixed version.

## Is CVE-2022-31087 being exploited?

There is no known exploitation of CVE-2022-31087 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-31087 and fix it if it is affected.

What it is: CVE-2022-31087 is a high-severity vulnerability in Debian Debian Linux, published on 27 Jun 2022. 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-2022-31087 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2022-31087/ (Markdown: https://insights.sbomify.com/CVE-2022-31087/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-31087
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-31087
- OSV: https://osv.dev/vulnerability/CVE-2022-31087

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-31087/
Summaries are generated and may contain mistakes; the official description above is the record.