- A PuTTY SSH client flaw, tracked as CVE-2024-31497, enables the recovery of cryptographic private keys.
- The vulnerability allows attackers with access to 60 cryptographic signatures to potentially recover the private key used for their generation.
- PuTTY is widely used by system administrators and developers for remote server management and file transfers over SSH.
- The flaw in PuTTY’s ECDSA nonce generation process can lead to private key compromise and unauthorized access to SSH servers.
- The issue was addressed in PuTTY version 0.81, which implements a new key-generation method; users are advised to update and replace unsafe keys.
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