CVE Vulnerability

CVE-2021-36367

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).

5.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

8.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html Release Notes Third Party Advisory
https://git.tartarus.org/?p=simon/putty.git;a=commit;h=1dc5659aa62848f0aeb5de7bd3839fecc7debefa Mailing List Patch
Configurations

Configuration 1

cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*
Information

Published : 2021-07-09 09:15

Updated : 2021-07-14 02:26

NVD link : CVE-2021-36367

Mitre link : CVE-2021-36367

Products Affected
No products.
CWE
CWE-345