CVE-2021-31232
First published: Fri Apr 30 2021(Updated: )
The Alertmanager in CNCF Cortex before 1.8.1 has a local file disclosure vulnerability when -experimental.alertmanager.enable-api is used. The HTTP basic auth password_file can be used as an attack vector to send any file content via a webhook. The alertmanager templates can be used as an attack vector to send any file content because the alertmanager can load any text file specified in the templates list.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Foundation Cortex | <1.8.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-31232?
CVE-2021-31232 is classified as a medium-severity vulnerability due to its potential for local file disclosure.
How do I fix CVE-2021-31232?
To mitigate CVE-2021-31232, upgrade Cortex to version 1.8.1 or later.
What systems are affected by CVE-2021-31232?
CVE-2021-31232 affects all versions of CNCF Cortex prior to 1.8.1 when using the -experimental.alertmanager.enable-api configuration.
What can be exploited in CVE-2021-31232?
CVE-2021-31232 can be exploited to send sensitive local file content via a webhook due to misconfigured HTTP basic authentication.
Is CVE-2021-31232 related to any specific configurations?
CVE-2021-31232 specifically relates to the usage of the -experimental.alertmanager.enable-api flag in Cortex.
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