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The vulnerability in fog-kubevirt stems from intentionally disabled certificate validation within its codebase, specifically in the HTTPS connection handling between Satellite and OpenShift components. When fog-kubevirt initiates communication, it fails to verify the authenticity of SSL/TLS certificates presented by the remote server due to a configuration or code flag that turns off standard validation checks. This omission allows any intermediary network actor to impersonate the legitimate server by presenting a self-signed or forged certificate during the TLS handshake. Consequently, the client library accepts any certificate without validating its chain of trust, issuance from a trusted Certificate Authority, or hostname matching. This effectively disables the primary defense against man-in-the-middle (MITM) attacks in encrypted channels. An attacker positioned on the network path—such as within the same LAN or through ARP or DNS spoofing—can intercept the connection request. They can then establish their own TLS session with the client using a rogue certificate, while simultaneously maintaining a separate session with the actual backend server. All data transmitted, including authentication tokens, configuration details, and orchestration commands, flows through the attacker’s node in cleartext after being decrypted with the fake certificate. This enables real-time eavesdropping, session hijacking, and data modification. The vulnerability is particularly critical in cloud-native environments where fog-kubevirt is used for management, as it compromises the integrity and confidentiality of all communications between the Satellite server and OpenShift clusters, leading to potential cluster takeover or data leakage.
Platform: fog-kubevirt
Version: Not specified
Vulnerability: MITM attack
Severity: High
Date: Feb 2 2026
Prediction: Patch date TBA
What Undercode Say:
Analytics:
curl -k https://target openssl s_client -connect host:port grep -r "verify_peer.false" codebase
How Exploit:
Intercept TLS handshake.
Present forged certificate.
Decrypt and modify traffic.
Protection from this CVE:
Enable certificate verification.
Use trusted CA certificates.
Enforce strict TLS settings.
Impact:
Information disclosure.
Data integrity compromise.
Cluster takeover possible.
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Sources:
Reported By: github.com
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