# CVE-2021-43782: Indirect LDAP injection in Tuleap

> A malicious admin or LDAP operator can inject LDAP filters to suspend accounts or take over other user accounts in Tuleap.

- **Severity:** Medium 6.7 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Dec 2021
- **Updated:** 4 Aug 2024

## What is CVE-2021-43782?

CVE-2021-43782 is a medium-severity vulnerability in Enalean Tuleap, published on 15 Dec 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Tuleap is a Libre and Open Source tool for end to end traceability of application and system developments. This is a follow up to GHSA-887w-pv2r-x8pm/CVE-2021-41276, the initial fix was incomplete. Tuleap does not sanitize properly the search filter built from the ldap_id attribute of a user during the daily synchronization. A malicious user could force accounts to be suspended or take over another account by forcing the update of the ldap_uid attribute. Note that the malicious user either need to have site administrator capability on the Tuleap instance or be an LDAP operator with the capability to create/modify account. The Tuleap instance needs to have the LDAP plugin activated and enabled for this issue to be exploitable. The following versions contain the fix: Tuleap Community Edition 13.2.99.83, Tuleap Enterprise Edition 13.1-6, and Tuleap Enterprise Edition 13.2-4.

Weakness: CWE-90 (Improper Neutralization of Special Elements used in an LDAP Query), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2021-43782?

It affects 1 product.


Products: Enalean Tuleap.

## How do I fix CVE-2021-43782?

No fix has been published for CVE-2021-43782 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43782 being exploited?

There is no known exploitation of CVE-2021-43782 in the wild and no public exploit code.

## Other vulnerabilities in Enalean Tuleap

- [CVE-2018-17298](https://insights.sbomify.com/CVE-2018-17298/): Business logic in n/a (critical 9.8)
- [CVE-2018-7538](https://insights.sbomify.com/CVE-2018-7538/): SQL injection in n/a (critical 9.8)
- [CVE-2014-7178](https://insights.sbomify.com/CVE-2014-7178/): Command injection in n/a (critical 9.3)
- [CVE-2021-43806](https://insights.sbomify.com/CVE-2021-43806/): SQL injection in Tuleap (high 8.8)
- [CVE-2021-41154](https://insights.sbomify.com/CVE-2021-41154/): SQL injection in the "SVN core" commits browser (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43782 and fix it if it is affected.

What it is: CVE-2021-43782 is a medium-severity vulnerability in Enalean Tuleap, published on 15 Dec 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-43782 in the wild and no public exploit code.

Affected product: Enalean Tuleap. 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-2021-43782/ (Markdown: https://insights.sbomify.com/CVE-2021-43782/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43782
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43782
- OSV: https://osv.dev/vulnerability/CVE-2021-43782

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43782/
Summaries are generated and may contain mistakes; the official description above is the record.