SSRF in Prometheus Blackbox Exporter

CVE-2020-16248

Prometheus Blackbox Exporter through 0.17.0 allows /probe?target= SSRF. NOTE: follow-on discussion suggests that this might plausibly be interpreted as both intended functionality and also a vulnerability

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.027 (84.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-16248?
CVE-2020-16248 is a medium-severity vulnerability in Prometheus Blackbox Exporter, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2020-08-09.
How severe is CVE-2020-16248?
Medium severity. CVSS v3 base score is 5.8 out of 10.
Is CVE-2020-16248 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.