# CVE-2023-5935: Missing authentication for local web interface in Arc before v1.6.0

> A local attacker can access the unauthenticated web interface to steal data, modify configuration, or execute code via malicious updates.

- **Severity:** High 7.3 (`CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **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:** 15 May 2024
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-rc98-whmj-qg8f

## What is CVE-2023-5935?

CVE-2023-5935 is a high-severity missing authorization vulnerability in Nozomi Networks Arc, published on 15 May 2024. 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

When configuring Arc (e.g. during the first setup), a local web interface is provided to ease the configuration process. Such web interface lacks authentication and may thus be abused by a local attacker or malware running on the machine itself.

A malicious local user or process, during a window of opportunity when the local web interface is active, may be able to extract sensitive information or change Arc's configuration. This could also lead to arbitrary code execution if a malicious update package is installed.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2023-5935?


## How do I fix CVE-2023-5935?

No fix has been published for CVE-2023-5935 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5935 being exploited?

There is no known exploitation of CVE-2023-5935 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5935 and fix it if it is affected.

What it is: CVE-2023-5935 is a high-severity missing authorization vulnerability in Nozomi Networks Arc, published on 15 May 2024. 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-2023-5935 in the wild and no public exploit code.

Affected product: Nozomi Networks Arc. 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-2023-5935/ (Markdown: https://insights.sbomify.com/CVE-2023-5935/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5935
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5935
- OSV: https://osv.dev/vulnerability/CVE-2023-5935

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5935/
Summaries are generated and may contain mistakes; the official description above is the record.