# CVE-2020-6363: Auth bypass in SAP Commerce Cloud

> Attackers can reuse old session credentials after a user changes their password, leading to unauthorized account access.

- **Severity:** Medium 4.6 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-495p-5rpx-57mw

## What is CVE-2020-6363?

CVE-2020-6363 is a medium-severity authentication bypass vulnerability in SAP Commerce Cloud, published on 15 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

SAP Commerce Cloud, versions - 1808, 1811, 1905, 2005, exposes several web applications that maintain sessions with a user. These sessions are established after the user has authenticated with username/passphrase credentials. The user can change their own passphrase, but this does not invalidate active sessions that the user may have with SAP Commerce Cloud web applications, which gives an attacker the opportunity to reuse old session credentials, resulting in Insufficient Session Expiration.

Weakness: CWE-613 (DEPRECATED: Insufficient Session Expiration)

## Which versions are affected by CVE-2020-6363?

It affects 1 product.


Products: Sap Commerce Cloud.

## How do I fix CVE-2020-6363?

No fix has been published for CVE-2020-6363 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6363 being exploited?

There is no known exploitation of CVE-2020-6363 in the wild and no public exploit code.

## Other vulnerabilities in SAP Commerce Cloud

- [CVE-2019-0344](https://insights.sbomify.com/CVE-2019-0344/): SAP Commerce Cloud Deserialization of Untrusted Data (critical 9.8, exploited in the wild)
- [CVE-2020-6238](https://insights.sbomify.com/CVE-2020-6238/): XML external entity in SAP Commerce (critical 9.3)
- [CVE-2023-39439](https://insights.sbomify.com/CVE-2023-39439/): SAP Commerce accepts empty passphrases. (high 8.8)
- [CVE-2019-0343](https://insights.sbomify.com/CVE-2019-0343/): Code injection in SAP Commerce Cloud (Mediaconversion Extension) (high 8.8)
- [CVE-2023-42481](https://insights.sbomify.com/CVE-2023-42481/): Improper Access Control vulnerability in SAP Commerce Cloud (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6363 and fix it if it is affected.

What it is: CVE-2020-6363 is a medium-severity authentication bypass vulnerability in SAP Commerce Cloud, published on 15 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-6363 in the wild and no public exploit code.

Affected product: SAP Commerce Cloud. 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-2020-6363/ (Markdown: https://insights.sbomify.com/CVE-2020-6363/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6363
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6363
- OSV: https://osv.dev/vulnerability/CVE-2020-6363

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-6363/
Summaries are generated and may contain mistakes; the official description above is the record.