# CVE-2016-7818: Privilege escalation in Intstaller for Device data encryption program

> Remote attackers can gain privileges via a Trojan horse DLL in untrusted search paths of Japanese pension service installers.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Jun 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-6j3f-x2f3-whq9

## What is CVE-2016-7818?

CVE-2016-7818 is a high-severity vulnerability in Japan Pension Service Intstaller for Device data encryption program, published on 9 Jun 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Untrusted search path vulnerability in Installers for Specification check program (social insurance) Ver. 9.00 and earlier, TODOKESHO print program Ver. 5.00 and earlier, Device data encryption program Ver. 1.00 and earlier, and TODOKESHO creation program Ver. 15.00 and earlier available prior to October 17, 2016 allows remote attackers to gain privileges via a Trojan horse DLL in an unspecified directory.

Weakness: CWE-264

## Which versions are affected by CVE-2016-7818?

It affects 4 products.


Products: Japan Pension Service Device Data Encryption Program, Japan Pension Service Specification Check Program, Japan Pension Service Todokesho Creation Program, Japan Pension Service Todokesho Print Program.

## How do I fix CVE-2016-7818?

No fix has been published for CVE-2016-7818 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-7818 being exploited?

There is no known exploitation of CVE-2016-7818 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-7818 and fix it if it is affected.

What it is: CVE-2016-7818 is a high-severity vulnerability in Japan Pension Service Intstaller for Device data encryption program, published on 9 Jun 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2016-7818 in the wild and no public exploit code.

Affected product: Japan Pension Service Intstaller for Device data encryption program. 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-2016-7818/ (Markdown: https://insights.sbomify.com/CVE-2016-7818/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-7818
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-7818
- OSV: https://osv.dev/vulnerability/CVE-2016-7818

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-7818/
Summaries are generated and may contain mistakes; the official description above is the record.