CVE-2021-36367
8.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Summary
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).
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | n/a | n/a | affected |
Weaknesses
- n/a
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
CVE Program Container
Additional References
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
- https://git.tartarus.org/?p=simon/putty.git%3Ba=commit%3Bh=1dc5659aa62848f0aeb5de7bd3839fecc7debefa
- https://www.debian.org/security/2023/dsa-5588
- https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
References
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
- https://git.tartarus.org/?p=simon/putty.git%3Ba=commit%3Bh=1dc5659aa62848f0aeb5de7bd3839fecc7debefa
- https://www.debian.org/security/2023/dsa-5588
- https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
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