CVE-2021-3680 Missing Cryptographic Step in star7th/showdoc
Medium 5.3
Published
Updated
Check this codebase for CVE-2021-3680 and fix it if it is affected.
What it is: CVE-2021-3680 is a medium-severity vulnerability in star7th/showdoc, published on 4 Aug 2021. 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-2021-3680 in the wild and no public exploit code.
Affected packages and fixed versions:
- showdoc/showdoc (Packagist): affected all versions up to 2.9.8; no fix listed
- showdoc/showdoc (Packagist): affected all versions up to 2.9.8; no fix listed
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-2021-3680/ (Markdown: https://insights.sbomify.com/CVE-2021-3680/index.md)
ShowDoc lacks a required cryptographic step, allowing attackers to bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3680?
CVE-2021-3680 is a medium-severity vulnerability in star7th/showdoc, published on 4 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
showdoc is vulnerable to Missing Cryptographic Step
Which versions are affected by CVE-2021-3680?
2 open source packages ship an affected version, including showdoc/showdoc. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
showdoc/showdoc Packagist | All versions to 2.9.8 | None |
showdoc/showdoc Packagist | All versions to 2.9.8 | None |
Products include Showdoc Showdoc.
How do I fix CVE-2021-3680?
No fix has been published for CVE-2021-3680 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-3680 being exploited?
There is no known exploitation of CVE-2021-3680 in the wild and no public exploit code.
Other vulnerabilities in star7th/showdoc
- CVE-2021-41745 Showdoc File Upload Vulnerability
- CVE-2021-36440 Unrestricted File Upload in ShowDoc v2.9.5
- CVE-2022-0942 Stored XSS due to Unrestricted File Upload in star7th/showdoc
- CVE-2022-1034 There is a Unrestricted Upload of File vulnerability in ShowDoc v2.10.3 in star7th/showdoc
- CVE-2022-0945 Stored XSS viva axd and cshtml file upload in star7th/showdoc in star7th/showdoc
Sources
Also known as GHSA-8vh3-29mr-m9xg.