# CVE-2021-30497: Path traversal in n/a

> Remote unauthenticated attackers can read arbitrary files on Ivanti Avalanche servers via path traversal in the image endpoint.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Apr 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-5pf7-7gpx-8vjv

## What is CVE-2021-30497?

CVE-2021-30497 is a high-severity path traversal vulnerability in Ivanti Avalanche, published on 6 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Ivanti Avalanche (Premise) 6.3.2 allows remote unauthenticated users to read arbitrary files via Absolute Path Traversal. The imageFilePath parameter processed by the /AvalancheWeb/image endpoint is not verified to be within the scope of the image folder, e.g., the attacker can obtain sensitive information via the C:/Windows/system32/config/system.sav value.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2021-30497?

It affects 1 product.


Products: Ivanti Avalanche.

## How do I fix CVE-2021-30497?

No fix has been published for CVE-2021-30497 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30497 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-30497 exists.

Public exploit code:

- Ivanti Avalanche 6.3.2 - Local File Inclusion (nuclei): http/cves/2021/CVE-2021-30497.yaml

## Other vulnerabilities in Ivanti Avalanche

- [CVE-2023-38036](https://insights.sbomify.com/CVE-2023-38036/): Memory corruption in Avalanche (critical 9.8)
- [CVE-2024-24996](https://insights.sbomify.com/CVE-2024-24996/): Memory corruption in Avalanche (critical 9.8)
- [CVE-2024-29204](https://insights.sbomify.com/CVE-2024-29204/): Memory corruption in Avalanche (critical 9.8)
- [CVE-2023-41727](https://insights.sbomify.com/CVE-2023-41727/): Memory corruption in Wavelink (critical 9.8)
- [CVE-2023-46216](https://insights.sbomify.com/CVE-2023-46216/): Memory corruption in Wavelink (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30497 and fix it if it is affected.

What it is: CVE-2021-30497 is a high-severity path traversal vulnerability in Ivanti Avalanche, published on 6 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-30497 exists.

Affected product: Ivanti Avalanche. 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-2021-30497/ (Markdown: https://insights.sbomify.com/CVE-2021-30497/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30497
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30497
- OSV: https://osv.dev/vulnerability/CVE-2021-30497

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30497/
Summaries are generated and may contain mistakes; the official description above is the record.