# CVE-2021-22300: Information disclosure in eCNS280 TD

> Attackers can obtain sensitive information from temporary files via inter-process access due to a missing timeout mechanism in Huawei eCNS280_TD devices.

- **Severity:** Medium 4.1 (`CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 6 Feb 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-5wq8-r82h-2qqc

## What is CVE-2021-22300?

CVE-2021-22300 is a medium-severity vulnerability in eCNS280_TD, published on 6 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

There is an information leak vulnerability in eCNS280_TD versions V100R005C00 and V100R005C10. A command does not have timeout exit mechanism. Temporary file contains sensitive information. This allows attackers to obtain information by inter-process access that requires other methods.

Weakness: CWE-312 (Cleartext Storage of Sensitive Information)

## Which versions are affected by CVE-2021-22300?

It affects 1 product.


Products: Huawei Ecns280 Td Firmware.

## How do I fix CVE-2021-22300?

No fix has been published for CVE-2021-22300 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22300 being exploited?

There is no known exploitation of CVE-2021-22300 in the wild and no public exploit code.

## Other vulnerabilities in eCNS280_TD

- [CVE-2021-22396](https://insights.sbomify.com/CVE-2021-22396/): Privilege escalation in eCNS280 TD;eSE620X vESS (high 7.8)
- [CVE-2021-22363](https://insights.sbomify.com/CVE-2021-22363/): Denial of service in eCNS280 TD (high 7.5)
- [CVE-2021-40007](https://insights.sbomify.com/CVE-2021-40007/): Information disclosure in eCNS280 TD (medium 6.5)
- [CVE-2021-39995](https://insights.sbomify.com/CVE-2021-39995/): Denial of service in eCNS280 TD;eSE620X vESS (medium 6.5)
- [CVE-2021-37036](https://insights.sbomify.com/CVE-2021-37036/): Information disclosure in FusionCompute;eCNS280 TD (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22300 and fix it if it is affected.

What it is: CVE-2021-22300 is a medium-severity vulnerability in eCNS280_TD, published on 6 Feb 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-2021-22300 in the wild and no public exploit code.

Affected product: eCNS280_TD. 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-2021-22300/ (Markdown: https://insights.sbomify.com/CVE-2021-22300/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22300
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22300
- OSV: https://osv.dev/vulnerability/CVE-2021-22300

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22300/
Summaries are generated and may contain mistakes; the official description above is the record.