Traffic interception via skipped TLS certificate verification
Published Apr 23, 2020 · Updated Aug 4, 2024
Improper certificate validation in F5 Networks NGINX Controller before 3.2.0 allows remote attackers to intercept management traffic. The Controller-to-NGINX Plus communication path skips TLS peer-certificate verification by default, allowing an untrusted endpoint certificate to be accepted. An attacker must control or redirect the network path between the systems and can then read or alter exchanged management data without interrupting service.
Summary
What happened
Improper certificate validation in F5 Networks NGINX Controller before 3.2.0 allows remote attackers to intercept management traffic. The Controller-to-NGINX Plus communication path skips TLS peer-certificate verification by default, allowing an untrusted endpoint certificate to be accepted. An attacker must control or redirect the network path between the systems and can then read or alter exchanged management data without interrupting service.
The record
- CVE
- CVE-2020-5864
- Published
- Apr 23, 2020
- Updated
- Aug 4, 2024
- Vendor
- F5 Networks
- Product
- NGINX Controller
- Classifications
- CWE-295, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 23, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 3.2.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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