# CVE-2023-4828: ITM Server Communications Hijack

> Attackers with valid agent credentials can hijack server communications to intercept, alter, or delete sensitive monitored data.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Sep 2023
- **Updated:** 24 Sep 2024
- **Also known as:** GHSA-2qp5-3jc8-pprj

## What is CVE-2023-4828?

CVE-2023-4828 is a medium-severity missing authorization vulnerability in Proofpoint ITM Server, published on 13 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An improper check for an exceptional condition in the Insider Threat Management (ITM) Server could be used by an attacker to change the server's configuration of any already-registered agent so that the agent sends all future communications to an attacker-chosen URL. This could result in disclosure of sensitive data events from the agent about the personally identifiable information (PII) and intellectual property it monitors, and all such data could be altered or deleted before reaching the ITM Server. An attacker must first successfully obtain valid agent credentials and agent hostname. All versions prior to 7.14.3.69 are affected.

Weakness: CWE-754 (Improper Check for Unusual or Exceptional Conditions)

## Which versions are affected by CVE-2023-4828?

It affects 1 product.


Products: Proofpoint Insider Threat Management.

## How do I fix CVE-2023-4828?

No fix has been published for CVE-2023-4828 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4828 being exploited?

There is no known exploitation of CVE-2023-4828 in the wild and no public exploit code.

## Other vulnerabilities in Proofpoint ITM Server

- [CVE-2020-8884](https://insights.sbomify.com/CVE-2020-8884/): Deserialization in n/a (high 8.8)
- [CVE-2021-27900](https://insights.sbomify.com/CVE-2021-27900/): Missing authorization in n/a (high 8.1)
- [CVE-2022-25294](https://insights.sbomify.com/CVE-2022-25294/): Privilege escalation in n/a (high 7.8)
- [CVE-2021-22159](https://insights.sbomify.com/CVE-2021-22159/): Missing authorization in n/a (high 7.8)
- [CVE-2023-4801](https://insights.sbomify.com/CVE-2023-4801/): ITM MacOS Agent Improper Certificate Validation (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4828 and fix it if it is affected.

What it is: CVE-2023-4828 is a medium-severity missing authorization vulnerability in Proofpoint ITM Server, published on 13 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-4828 in the wild and no public exploit code.

Affected product: Proofpoint ITM Server. 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-2023-4828/ (Markdown: https://insights.sbomify.com/CVE-2023-4828/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4828
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4828
- OSV: https://osv.dev/vulnerability/CVE-2023-4828

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-4828/
Summaries are generated and may contain mistakes; the official description above is the record.