# CVE-2021-35652: Auth bypass in Hyperion Essbase Administration Services

> Unauthenticated attackers can take over Oracle Essbase Administration Services via HTTP, leading to full system compromise.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:** 20 Oct 2021
- **Updated:** 25 Sep 2024
- **Also known as:** GHSA-g93q-vj58-xw7m

## What is CVE-2021-35652?

CVE-2021-35652 is a critical authentication bypass vulnerability in Oracle Corporation Hyperion Essbase Administration Services, published on 20 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Vulnerability in the Essbase Administration Services product of Oracle Essbase (component: EAS Console). The supported versions that are affected are Prior to 11.1.2.4.046 and Prior to 21.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Essbase Administration Services. While the vulnerability is in Essbase Administration Services, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Essbase Administration Services. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

## Which versions are affected by CVE-2021-35652?

It affects 1 product.


Products: Oracle Essbase Administration Services.

## How do I fix CVE-2021-35652?

No fix has been published for CVE-2021-35652 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-35652 being exploited?

There is no known exploitation of CVE-2021-35652 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Corporation Hyperion Essbase Administration Services

- [CVE-2021-35683](https://insights.sbomify.com/CVE-2021-35683/): Auth bypass in Hyperion Essbase Administration Services (critical 9.9)
- [CVE-2021-35651](https://insights.sbomify.com/CVE-2021-35651/): Information disclosure in Hyperion Essbase Administration Services (high 8.5)
- [CVE-2021-35653](https://insights.sbomify.com/CVE-2021-35653/): Information disclosure in Hyperion Essbase Administration Services (high 7.7)
- [CVE-2021-35654](https://insights.sbomify.com/CVE-2021-35654/): Denial of service in Hyperion Essbase Administration Services (high 7.5)
- [CVE-2021-35655](https://insights.sbomify.com/CVE-2021-35655/): Information disclosure in Hyperion Essbase Administration Services (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-35652 and fix it if it is affected.

What it is: CVE-2021-35652 is a critical authentication bypass vulnerability in Oracle Corporation Hyperion Essbase Administration Services, published on 20 Oct 2021. 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-2021-35652 in the wild and no public exploit code.

Affected product: Oracle Corporation Hyperion Essbase Administration Services. 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-2021-35652/ (Markdown: https://insights.sbomify.com/CVE-2021-35652/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-35652
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-35652
- OSV: https://osv.dev/vulnerability/CVE-2021-35652

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-35652/
Summaries are generated and may contain mistakes; the official description above is the record.