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Ubuntu.comUB:CVE-2017-2659

HistoryMar 21, 2019 - 12:00 a.m.

CVE-2017-2659

2019-03-2100:00:00

ubuntu.com

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.001

Percentile

49.6%

JSON

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.

References

launchpad.net/bugs/cve/CVE-2017-2659

nvd.nist.gov/vuln/detail/CVE-2017-2659

secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86

security-tracker.debian.org/tracker/CVE-2017-2659

www.cve.org/CVERecord?id=CVE-2017-2659

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.001

Percentile

49.6%

JSON

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