Vulnerability CVE-2017-2659
Published: 2019-03-21

Description:
It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Dropbear ssh project -> Dropbear ssh 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659
https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86
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