Permissions, Privileges, and Access Controls in PuTTY - CVE-2019-17068

 

Permissions, Privileges, and Access Controls in PuTTY - CVE-2019-17068

Published: October 7, 2019


Vulnerability identifier: #VU21597
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-17068
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Simon Tatham
Affected software:
PuTTY

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to an error with "bracketed paste mode" protection implementation. A remote attacker can affect current user's session with a malicious clipboard content and execute arbitrary commands on a remote system with privileges of the current user.


How to mitigate CVE-2019-17068

Install updates from vendor's website.

Sources