# CVE-2017-17743: Privilege escalation in n/a

> Authenticated attackers can escape the restricted shell and escalate privileges by uploading a malicious .bashrc file on UCOPIA Wireless Appliance devices.

- **Severity:** Medium 6.7 (`CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-hcwg-vj9p-2xch

## What is CVE-2017-17743?

CVE-2017-17743 is a medium-severity vulnerability in n/a, published on 22 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper input sanitization within the restricted administration shell on UCOPIA Wireless Appliance devices before 4.4.20, 5.0.x before 5.0.19, and 5.1.x before 5.1.11 allows authenticated remote attackers to escape the shell and escalate their privileges by uploading a .bashrc file containing the /bin/sh string. In some situations, authentication can be achieved via the bhu85tgb default password for the admin account.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2017-17743?

It affects 1 product.


Products: Ucopia Wireless Appliance Firmware.

## How do I fix CVE-2017-17743?

No fix has been published for CVE-2017-17743 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-17743 being exploited?

There is no known exploitation of CVE-2017-17743 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2022-44720](https://insights.sbomify.com/CVE-2022-44720/): Command injection in n/a (critical 9.8)
- [CVE-2018-15481](https://insights.sbomify.com/CVE-2018-15481/): Command injection in n/a (high 8.8)
- [CVE-2022-44719](https://insights.sbomify.com/CVE-2022-44719/): Misconfiguration in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-17743 and fix it if it is affected.

What it is: CVE-2017-17743 is a medium-severity vulnerability in n/a, published on 22 Mar 2018. 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-2017-17743 in the wild and no public exploit code.

Affected product: n/a. 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-2017-17743/ (Markdown: https://insights.sbomify.com/CVE-2017-17743/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-17743
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-17743
- OSV: https://osv.dev/vulnerability/CVE-2017-17743

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-17743/
Summaries are generated and may contain mistakes; the official description above is the record.