# CVE-2017-7981: Command injection in n/a

> An authenticated user can execute arbitrary commands via the SyntaxHighlighter plugin in Tuleap due to unsafe use of proc_open.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 29 Apr 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-8h34-7hrp-w64c

## What is CVE-2017-7981?

CVE-2017-7981 is a high-severity command injection vulnerability in Enalean Tuleap, published on 29 Apr 2017. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Tuleap before 9.7 allows command injection via the PhpWiki 1.3.10 SyntaxHighlighter plugin. This occurs in the Project Wiki component because the proc_open PHP function is used within PhpWiki before 1.5.5 with a syntax value in its first argument, and an authenticated Tuleap user can control this value, even with shell metacharacters, as demonstrated by a '<?plugin SyntaxHighlighter syntax="c;id"' line to execute the id command.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2017-7981?

It affects 2 products.


Products: Enalean Tuleap, Phpwiki Project Phpwiki.

## How do I fix CVE-2017-7981?

No fix has been published for CVE-2017-7981 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-7981 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-7981 exists.

Public exploit code:

- Tuleap Project Wiki 8.3 < 9.6.99.86 - Command Injection (exploitdb)

## 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-2017-7981 and fix it if it is affected.

What it is: CVE-2017-7981 is a high-severity command injection vulnerability in Enalean Tuleap, published on 29 Apr 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-7981 exists.

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-2017-7981/ (Markdown: https://insights.sbomify.com/CVE-2017-7981/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-7981
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-7981
- OSV: https://osv.dev/vulnerability/CVE-2017-7981

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-7981/
Summaries are generated and may contain mistakes; the official description above is the record.