CVE-2021-39174 Configuration leak
Authenticated users can leak sensitive configuration values like application secrets and passwords from the dotenv file.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-39174?
CVE-2021-39174 is a high-severity vulnerability in fiveai Cachet, published on 27 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Cachet is an open source status page system. Prior to version 2.5.1, authenticated users, regardless of their privileges (User or Admin), can leak the value of any configuration entry of the dotenv file, e.g. the application secret (`APP_KEY`) and various passwords (email, database, etc). This issue was addressed in version 2.5.1 by improving `UpdateConfigCommandHandler` and preventing the use of nested variables in the resulting dotenv configuration file. As a workaround, only allow trusted source IP addresses to access to the administration dashboard.
Weakness: CWE-75
Which versions are affected by CVE-2021-39174?
2 open source packages ship an affected version, including cachethq/cachet. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
cachethq/cachet Packagist | All versions | 2.5.1 |
cachethq/cachet Packagist | All versions | 2.5.1 |
Products include Catchethq Catchet.
How do I fix CVE-2021-39174?
Upgrade cachethq/cachet to 2.5.1 or later.
Is CVE-2021-39174 being exploited?
There is no known exploitation of CVE-2021-39174 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in fiveai Cachet
Sources
Also known as GHSA-88f9-7xxh-c688.