# CVE-2017-3756: Privilege escalation in ThinkPad Active Protection System

> Local attackers can escalate privileges to administrative level via an unquoted service path in Lenovo Active Protection System.

- **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:** No
- **Published:** 18 Aug 2017
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-mp3w-62hp-vh8j

## What is CVE-2017-3756?

CVE-2017-3756 is a high-severity vulnerability in Lenovo Group Ltd. ThinkPad Active Protection System, published on 18 Aug 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A privilege escalation vulnerability was identified in Lenovo Active Protection System for ThinkPad systems versions earlier than 1.82.0.17. An attacker with local privileges could execute code with administrative privileges via an unquoted service path.

## Which versions are affected by CVE-2017-3756?

It affects 148 products.


Products: Lenovo Thinkpad 10 Ella 2, Lenovo Thinkpad 10 Ella 2 Bios, Lenovo Thinkpad 11e Beema, Lenovo Thinkpad 11e Beema Bios, Lenovo Thinkpad 11e Braswell, Lenovo Thinkpad 11e Braswell Bios, Lenovo Thinkpad 11e Broadwell, Lenovo Thinkpad 11e Broadwell Bios, Lenovo Thinkpad 11e Skylake, Lenovo Thinkpad 11e Skylake Bios, Lenovo Thinkpad 13e, Lenovo Thinkpad 13e Bios, Lenovo Thinkpad E450, Lenovo Thinkpad E450 Bios, Lenovo Thinkpad E450c, Lenovo Thinkpad E450c Bios, Lenovo Thinkpad E455, Lenovo Thinkpad E455 Bios, Lenovo Thinkpad E460, Lenovo Thinkpad E460 Bios and 128 more.

## How do I fix CVE-2017-3756?

No fix has been published for CVE-2017-3756 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-3756 being exploited?

There is no known exploitation of CVE-2017-3756 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-3756 and fix it if it is affected.

What it is: CVE-2017-3756 is a high-severity vulnerability in Lenovo Group Ltd. ThinkPad Active Protection System, published on 18 Aug 2017. 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-2017-3756 in the wild and no public exploit code.

Affected product: Lenovo Group Ltd. ThinkPad Active Protection System. 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-2017-3756/ (Markdown: https://insights.sbomify.com/CVE-2017-3756/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-3756
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-3756
- OSV: https://osv.dev/vulnerability/CVE-2017-3756

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-3756/
Summaries are generated and may contain mistakes; the official description above is the record.