# CVE-2018-7531: Denial of service in OSIsoft PI Data Archive

> Unauthenticated attackers can crash the OSIsoft PI Data Archive server by sending unvalidated custom requests, disrupting industrial data services.

- **Severity:** Medium 5.9 (`CVSS:3.0/AV:N/AC:H/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:** 14 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-8jqc-vr4c-j88m

## What is CVE-2018-7531?

CVE-2018-7531 is a medium-severity denial of service vulnerability in OSIsoft PI Data Archive, published on 14 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An Improper Input Validation issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Unauthenticated users may use unvalidated custom requests to crash the server.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2018-7531?

It affects 1 product.


Products: Osisoft Pi Data Archive.

## How do I fix CVE-2018-7531?

No fix has been published for CVE-2018-7531 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7531 being exploited?

There is no known exploitation of CVE-2018-7531 in the wild and no public exploit code.

## Other vulnerabilities in OSIsoft PI Data Archive

- [CVE-2018-7533](https://insights.sbomify.com/CVE-2018-7533/): Misconfiguration in OSIsoft PI Data Archive (high 7.8)
- [CVE-2020-10604](https://insights.sbomify.com/CVE-2020-10604/): Denial of service in OSIsoft PI System multiple products and versions (high 7.5)
- [CVE-2018-7529](https://insights.sbomify.com/CVE-2018-7529/): Deserialization in OSIsoft PI Data Archive (high 7.5)
- [CVE-2017-7930](https://insights.sbomify.com/CVE-2017-7930/): Auth bypass in OSIsoft PI Server 2017 (high 7.4)
- [CVE-2020-10600](https://insights.sbomify.com/CVE-2020-10600/): OSIsoft PI System (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7531 and fix it if it is affected.

What it is: CVE-2018-7531 is a medium-severity denial of service vulnerability in OSIsoft PI Data Archive, published on 14 Mar 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-2018-7531 in the wild and no public exploit code.

Affected product: OSIsoft PI Data Archive. 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-2018-7531/ (Markdown: https://insights.sbomify.com/CVE-2018-7531/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7531
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7531
- OSV: https://osv.dev/vulnerability/CVE-2018-7531

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-7531/
Summaries are generated and may contain mistakes; the official description above is the record.