CVE-2023-26735: SSRF
First published: Tue Apr 25 2023(Updated: )
** DISPUTED ** 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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Prometheus Blackbox Exporter | =0.23.0 | |
| go/github.com/prometheus/blackbox_exporter | <=0.23.0 |
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Reference Links
- http://blackboxexporter.com
- http://prometheus.com
- https://github.com/prometheus/blackbox_exporter#tls-and-basic-authentication
- https://github.com/prometheus/blackbox_exporter/issues/1024
- https://github.com/prometheus/blackbox_exporter/issues/1025
- https://github.com/prometheus/blackbox_exporter/issues/1026
- https://nvd.nist.gov/vuln/detail/CVE-2023-26735
- https://github.com/advisories/GHSA-939c-3g97-vpvv (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-26735?
CVE-2023-26735 has a disputed severity rating due to the presence of configurable authentication options.
How do I fix CVE-2023-26735?
To mitigate CVE-2023-26735, ensure proper authentication and access controls are configured on the blackbox_exporter probe interface.
What impact does CVE-2023-26735 have on my system?
CVE-2023-26735 allows attackers to potentially detect intranet ports and services, which could lead to information leakage.
Which versions are affected by CVE-2023-26735?
CVE-2023-26735 affects Prometheus Blackbox Exporter version 0.23.0 and below.
Is CVE-2023-26735 fully exploitable?
The exploitability of CVE-2023-26735 is debated due to the ability to configure authentication, which may mitigate risks.
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