# CVE-2017-3889: Open redirect in Cisco Registered Envelope Service

> An unauthenticated remote attacker can redirect users to malicious web pages via the Cisco Registered Envelope Service web interface.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 7 Apr 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-42hg-x876-r3q5

## What is CVE-2017-3889?

CVE-2017-3889 is a medium-severity vulnerability in Cisco Registered Envelope Service, published on 7 Apr 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability in the web interface of the Cisco Registered Envelope Service could allow an unauthenticated, remote attacker to redirect a user to a undesired web page, aka an Open Redirect. This vulnerability affects the Cisco Registered Envelope cloud-based service. More Information: CSCvc60123. Known Affected Releases: 5.1.0-015.

Weakness: CWE-601 (URL Redirection to Untrusted Site), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2017-3889?

It affects 1 product.


Products: Cisco Registered Envelope Service.

## How do I fix CVE-2017-3889?

No fix has been published for CVE-2017-3889 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-3889 being exploited?

There is no known exploitation of CVE-2017-3889 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Registered Envelope Service

- [CVE-2017-12320](https://insights.sbomify.com/CVE-2017-12320/): Cross-site scripting in Cisco Registered Envelope Service (medium 6.1)
- [CVE-2017-12321](https://insights.sbomify.com/CVE-2017-12321/): Cross-site scripting in Cisco Registered Envelope Service (medium 6.1)
- [CVE-2017-12323](https://insights.sbomify.com/CVE-2017-12323/): Cross-site scripting in Cisco Registered Envelope Service (medium 6.1)
- [CVE-2019-1777](https://insights.sbomify.com/CVE-2019-1777/): Cisco Registered Envelope Service Stored Cross-Site Scripting Vulnerability (medium 5.4)
- [CVE-2018-0367](https://insights.sbomify.com/CVE-2018-0367/): Cross-site scripting in Registered Envelope Service (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-3889 and fix it if it is affected.

What it is: CVE-2017-3889 is a medium-severity vulnerability in Cisco Registered Envelope Service, published on 7 Apr 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-3889 in the wild and no public exploit code.

Affected product: Cisco Registered Envelope Service. 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-2017-3889/ (Markdown: https://insights.sbomify.com/CVE-2017-3889/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-3889
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-3889
- OSV: https://osv.dev/vulnerability/CVE-2017-3889

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-3889/
Summaries are generated and may contain mistakes; the official description above is the record.