# CVE-2020-6263: Auth bypass in SAP NetWeaver AS JAVA

> Standalone clients can bypass authentication checks on SAP NetWeaver AS Java via the P4 Protocol, allowing unauthorized access to operations requiring user identity.

- **Severity:** Medium 6.9 (`CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-pvvr-7qqm-3prh

## What is CVE-2020-6263?

CVE-2020-6263 is a medium-severity authentication bypass vulnerability in Sap Netweaver Application Server Java, published on 10 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Standalone clients connecting to SAP NetWeaver AS Java via P4 Protocol, versions (SAP-JEECOR 7.00, 7.01; SERVERCOR 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50; CORE-TOOLS 7.00, 7.01, 7.02, 7.05, 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50) do not perform any authentication checks for operations that require user identity leading to Authentication Bypass.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2020-6263?

It affects 1 product.


Products: Sap Netweaver Application Server Java.

## How do I fix CVE-2020-6263?

No fix has been published for CVE-2020-6263 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6263 being exploited?

There is no known exploitation of CVE-2020-6263 in the wild and no public exploit code.

## Other vulnerabilities in Sap Netweaver Application Server Java

- [CVE-2020-6287](https://insights.sbomify.com/CVE-2020-6287/): SAP NetWeaver Missing Authentication for Critical Function (critical 10.0, exploited in the wild)
- [CVE-2010-5326](https://insights.sbomify.com/CVE-2010-5326/): SAP NetWeaver Remote Code Execution (critical 10.0, exploited in the wild)
- [CVE-2016-2386](https://insights.sbomify.com/CVE-2016-2386/): SAP NetWeaver SQL Injection (critical 9.8, exploited in the wild)
- [CVE-2017-12637](https://insights.sbomify.com/CVE-2017-12637/): SAP NetWeaver Directory Traversal (high 7.5, exploited in the wild)
- [CVE-2016-3976](https://insights.sbomify.com/CVE-2016-3976/): SAP NetWeaver Directory Traversal (high 7.5, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6263 and fix it if it is affected.

What it is: CVE-2020-6263 is a medium-severity authentication bypass vulnerability in Sap Netweaver Application Server Java, published on 10 Jun 2020. 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-2020-6263 in the wild and no public exploit code.

Affected product: Sap Netweaver Application Server Java. 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-2020-6263/ (Markdown: https://insights.sbomify.com/CVE-2020-6263/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6263
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6263
- OSV: https://osv.dev/vulnerability/CVE-2020-6263

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-6263/
Summaries are generated and may contain mistakes; the official description above is the record.