# CVE-2018-2956: Auth bypass in Hospitality OPERA 5 Property Services

> An unauthenticated attacker with local access can compromise Oracle Hospitality OPERA 5 Property Services, leading to full system takeover.

- **Severity:** High 8.1 (`CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jul 2018
- **Updated:** 2 Oct 2024
- **Also known as:** GHSA-gr6x-hpfj-53mh

## What is CVE-2018-2956?

CVE-2018-2956 is a high-severity authentication bypass vulnerability in Oracle Corporation Hospitality OPERA 5 Property Services, published on 18 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Vulnerability in the Oracle Hospitality OPERA 5 Property Services component of Oracle Hospitality Applications (subcomponent: Integration). The supported version that is affected is 5.5.x. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Hospitality OPERA 5 Property Services executes to compromise Oracle Hospitality OPERA 5 Property Services. While the vulnerability is in Oracle Hospitality OPERA 5 Property Services, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Hospitality OPERA 5 Property Services. CVSS 3.0 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).

## Which versions are affected by CVE-2018-2956?

It affects 1 product.


Products: Oracle Hospitality Opera Property Management.

## How do I fix CVE-2018-2956?

No fix has been published for CVE-2018-2956 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-2956 being exploited?

There is no known exploitation of CVE-2018-2956 in the wild and no public exploit code.

## Other vulnerabilities in Oracle Corporation Hospitality OPERA 5 Property Services

- [CVE-2018-2957](https://insights.sbomify.com/CVE-2018-2957/): Information disclosure in Hospitality OPERA 5 Property Services (high 7.5)
- [CVE-2020-2675](https://insights.sbomify.com/CVE-2020-2675/): Missing authorization in Hospitality OPERA 5 Property Services (high 7.1)
- [CVE-2018-3013](https://insights.sbomify.com/CVE-2018-3013/): Information disclosure in Hospitality OPERA 5 Property Services (medium 6.5)
- [CVE-2018-3014](https://insights.sbomify.com/CVE-2018-3014/): Information disclosure in Hospitality OPERA 5 Property Services (medium 6.5)
- [CVE-2020-2676](https://insights.sbomify.com/CVE-2020-2676/): Other in Hospitality OPERA 5 Property Services (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-2956 and fix it if it is affected.

What it is: CVE-2018-2956 is a high-severity authentication bypass vulnerability in Oracle Corporation Hospitality OPERA 5 Property Services, published on 18 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-2956 in the wild and no public exploit code.

Affected product: Oracle Corporation Hospitality OPERA 5 Property 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-2018-2956/ (Markdown: https://insights.sbomify.com/CVE-2018-2956/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-2956
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-2956
- OSV: https://osv.dev/vulnerability/CVE-2018-2956

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-2956/
Summaries are generated and may contain mistakes; the official description above is the record.