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Dropbear SSH 'CVE-2017-9078' Post-authentication root RCE Vulnerability
Information
Severity
Severity
Critical
Family
Family
General
CVSSv2 Base
CVSSv2 Base
9.3
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
6 years ago
Modified
Modified
5 years ago
Summary
This host is installed with Dropbear SSH and is prone to a post-authentication root remote code execution vulnerability.
Insight
Insight
The flaw exists because of a double free in cleanup of TCP listeners when the -a option is enabled.
Affected Software
Affected Software
Dropbear SSH versions 2013.56 to 2016.74
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to Dropbear SSH version 2017.75 or later.