# CVE-2018-1240: Information disclosure in ViPR Controller

> An attacker on the same subnet can sniff plaintext VRRP passwords to hijack the virtual IP and cause denial of service.

- **Severity:** High 8.0 (`CVSS:3.0/AV:A/AC:L/PR:L/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 18 Apr 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-r4qw-7cmh-wgff

## What is CVE-2018-1240?

CVE-2018-1240 is a high-severity vulnerability in Dell EMC ViPR Controller, published on 18 Apr 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Dell EMC ViPR Controller, versions after 3.0.0.38, contain an information exposure vulnerability in the VRRP. VRRP defaults to an insecure configuration in Linux's keepalived component which sends the cluster password in plaintext through multicast. A malicious user, having access to the vCloud subnet where ViPR is deployed, could potentially sniff the password and use it to take over the cluster's virtual IP and cause a denial of service on that ViPR Controller system.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2018-1240?

It affects 1 product.


Products: Emc Vipr Controller.

## How do I fix CVE-2018-1240?

No fix has been published for CVE-2018-1240 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-1240 being exploited?

There is no known exploitation of CVE-2018-1240 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1240 and fix it if it is affected.

What it is: CVE-2018-1240 is a high-severity vulnerability in Dell EMC ViPR Controller, published on 18 Apr 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-2018-1240 in the wild and no public exploit code.

Affected product: Dell EMC ViPR Controller. 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-2018-1240/ (Markdown: https://insights.sbomify.com/CVE-2018-1240/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1240
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1240
- OSV: https://osv.dev/vulnerability/CVE-2018-1240

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1240/
Summaries are generated and may contain mistakes; the official description above is the record.