# CVE-2021-34605: Xinje XD/E Series PLC Program Tool Zip Slip

> An attacker can achieve arbitrary file write and remote code execution by tricking a user into opening a malicious project file in the XINJE PLC programming tool.

- **Severity:** High 7.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 May 2022
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-g53q-f99j-jc9r

## What is CVE-2021-34605?

CVE-2021-34605 is a high-severity path traversal vulnerability in XINJE XD/E Series PLC Program Tool, published on 11 May 2022. 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

A zip slip vulnerability in XINJE XD/E Series PLC Program Tool up to version v3.5.1 can provide an attacker with arbitrary file write privilege when opening a specially-crafted project file. This vulnerability can be triggered by manually opening an infected project file, or by initiating an upload program request from an infected Xinje PLC. This can result in remote code execution, information disclosure and denial of service of the system running the XINJE XD/E Series PLC Program Tool.

Weakness: CWE-23 (Relative Path Traversal)

## Which versions are affected by CVE-2021-34605?

It affects 1 product.


Products: Xinje Xd\/E Series Plc Program Tool.

## How do I fix CVE-2021-34605?

No fix has been published for CVE-2021-34605 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34605 being exploited?

There is no known exploitation of CVE-2021-34605 in the wild and no public exploit code.

## Other vulnerabilities in XINJE XD/E Series PLC Program Tool

- [CVE-2021-34606](https://insights.sbomify.com/CVE-2021-34606/): XINJE XD/E Series PLC Program Tool DLL Hijacking (high 7.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34605 and fix it if it is affected.

What it is: CVE-2021-34605 is a high-severity path traversal vulnerability in XINJE XD/E Series PLC Program Tool, published on 11 May 2022. 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-2021-34605 in the wild and no public exploit code.

Affected product: XINJE XD/E Series PLC Program Tool. 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-2021-34605/ (Markdown: https://insights.sbomify.com/CVE-2021-34605/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34605
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34605
- OSV: https://osv.dev/vulnerability/CVE-2021-34605

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34605/
Summaries are generated and may contain mistakes; the official description above is the record.