SSRF in Prometheus Blackbox Exporter
CVE-2023-26735
blackbox_exporter v0.23.0 was discovered to contain an access control issue in its probe interface. This vulnerability allows attackers to detect intranet ports and services, as well as download resources. NOTE: this is disputed by third parties because authentication can be configured.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Prometheus Blackbox Exporter — versions 0.23.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
- af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
- github.com/prometheus/blackbox_exporter/issues/1024 (Issue Tracking)
- github.com/prometheus/blackbox_exporter/issues/1025 (Issue Tracking)
- github.com/prometheus/blackbox_exporter/issues/1026 (Issue Tracking)
- github.com/prometheus/blackbox_exporter (Product)
Frequently asked questions
- What is CVE-2023-26735?
- CVE-2023-26735 is a high-severity vulnerability in Prometheus Blackbox Exporter, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2023-04-26.
- How severe is CVE-2023-26735?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-26735 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.