Vulnerability in Linuxfoundation Cortex
CVE-2021-31232
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
References
- community.grafana.com/c/security-announcements (Third Party Advisory)
- github.com/cortexproject/cortex (Third Party Advisory)
- github.com/cortexproject/cortex/pull/4129/files (Patch, Third Party Advisory)
- lists.cncf.io/g/cortex-users/message/50 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31232?
- CVE-2021-31232 is a medium-severity vulnerability in Linuxfoundation Cortex. CVSS score: 5.5/10. Published 2021-04-30.
- How severe is CVE-2021-31232?
- Medium severity. CVSS v3 base score is 5.5 out of 10.