Port Forwarding Vulnerability in PuTTY for Windows
CVE-2019-17067

9.8CRITICAL

Key Information:

Vendor

Putty

Status
Putty
Vendor
CVE Published:
1 October 2019

What is CVE-2019-17067?

PuTTY versions prior to 0.73 on Windows exhibit a vulnerability in the port-forwarding functionality. This flaw allows attackers to create unauthorized listening sockets on the same port, potentially enabling them to capture incoming connections intended for the legitimate user. Users of affected versions are advised to upgrade to the latest release to mitigate this security risk.

Human OS v1.0:
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References

https://lists.tartarus.org/pipermail/putty-announce/2019/...
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20191127-0003/
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CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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