# CVE-2018-7529: Deserialization in OSIsoft PI Data Archive

> Unauthenticated attackers can crash the OSIsoft PI Data Archive server by sending malicious deserialized data.

- **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:** 14 Mar 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-jhf2-5g69-j72p

## What is CVE-2018-7529?

CVE-2018-7529 is a high-severity unsafe deserialization 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

A Deserialization of Untrusted Data issue was discovered in OSIsoft PI Data Archive versions 2017 and prior. Unauthenticated users may modify deserialized data to send custom requests that crash the server.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2018-7529?

It affects 1 product.


Products: Osisoft Pi Data Archive.

## How do I fix CVE-2018-7529?

No fix has been published for CVE-2018-7529 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7529 being exploited?

There is no known exploitation of CVE-2018-7529 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-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)
- [CVE-2018-7531](https://insights.sbomify.com/CVE-2018-7531/): Denial of service in OSIsoft PI Data Archive (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7529 and fix it if it is affected.

What it is: CVE-2018-7529 is a high-severity unsafe deserialization 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-2018-7529 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-2018-7529/ (Markdown: https://insights.sbomify.com/CVE-2018-7529/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7529
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7529
- OSV: https://osv.dev/vulnerability/CVE-2018-7529

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-7529/
Summaries are generated and may contain mistakes; the official description above is the record.