CVE-2021-36367
High
Description
PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a later spoofed authentication prompt (that the attacker can use to capture credential data, and use that data for purposes that are undesired by the client user).
SeverityHigh
CVSS8.1
Exploit probability—
ProductPutty
PublishedJul 9, 2021
First seenJul 9, 2021
Weakness typeCWE-345CWE-345
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| putty putty | v ≤ 0.75 | — |
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