# CVE-2017-3768: Denial of service in Integrated Management Module 2 (IMM2)

> An unprivileged attacker can cause a denial of service on Lenovo IMM2 by flooding it with authentication failures, exhausting memory and forcing reboots.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Jan 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-7pqr-j23w-p43m

## What is CVE-2017-3768?

CVE-2017-3768 is a high-severity denial of service vulnerability in Lenovo Group Ltd. Integrated Management Module 2 (IMM2), published on 26 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An unprivileged attacker with connectivity to the IMM2 could cause a denial of service attack on the IMM2 (Versions earlier than 4.4 for Lenovo System x and earlier than 6.4 for IBM System x). Flooding the IMM2 with a high volume of authentication failures via the Common Information Model (CIM) used by LXCA and OneCLI and other tools can exhaust available system memory which can cause the IMM2 to reboot itself until the requests cease.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2017-3768?

It affects 42 products.


Products: Ibm Bladecenter Hs22 Firmware, Ibm Bladecenter Hs23 Firmware, Ibm Bladecenter Hs23e Firmware, Ibm Flex System X220 M4 Firmware, Ibm Flex System X222 M4 Firmware, Ibm Flex System X240 M4 Firmware, Ibm Flex System X280 M4 Firmware, Ibm Flex System X440 M4 Firmware, Ibm Flex System X480 M4 Firmware, Ibm Flex System X880 M4 Firmware, Ibm Idataplex Dx360 M4 Firmware, Ibm Idataplex Dx360 M4 Water Cooled Firmware, Ibm Nextscale Nx360 M4 Firmware, Ibm System X3100 M4 Firmware, Ibm System X3100 M5 Firmware, Ibm System X3250 M4 Firmware, Ibm System X3250 M5 Firmware, Ibm System X3300 M4 Firmware, Ibm System X3500 M4 Firmware, Ibm System X3530 M4 Firmware and 22 more.

## How do I fix CVE-2017-3768?

No fix has been published for CVE-2017-3768 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-3768 being exploited?

There is no known exploitation of CVE-2017-3768 in the wild and no public exploit code.

## Other vulnerabilities in Lenovo Group Ltd. Integrated Management Module 2 (IMM2)

- [CVE-2018-9068](https://insights.sbomify.com/CVE-2018-9068/): Hardcoded credentials in System x IMM2 (high 7.5)
- [CVE-2019-6157](https://insights.sbomify.com/CVE-2019-6157/): Information disclosure in System x (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-3768 and fix it if it is affected.

What it is: CVE-2017-3768 is a high-severity denial of service vulnerability in Lenovo Group Ltd. Integrated Management Module 2 (IMM2), published on 26 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-3768 in the wild and no public exploit code.

Affected product: Lenovo Group Ltd. Integrated Management Module 2 (IMM2). 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-2017-3768/ (Markdown: https://insights.sbomify.com/CVE-2017-3768/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-3768
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-3768
- OSV: https://osv.dev/vulnerability/CVE-2017-3768

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-3768/
Summaries are generated and may contain mistakes; the official description above is the record.