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ubuntucveUbuntu.comUB:CVE-2018-16857
HistoryNov 27, 2018 - 12:00 a.m.

CVE-2018-16857

2018-11-2700:00:00
ubuntu.com
ubuntu.com
15

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.007

Percentile

79.8%

Samba from version 4.9.0 and before version 4.9.3 that have AD DC
configurations watching for bad passwords (to restrict brute forcing of
passwords) in a window of more than 3 minutes may not watch for bad
passwords at all. The primary risk from this issue is with regards to
domains that have been upgraded from Samba 4.8 and earlier. In these cases
the manual testing done to confirm an organisation’s password policies
apply as expected may not have been re-done after the upgrade.

Bugs

Notes

Author Note
mdeslaur 4.9.x only

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.007

Percentile

79.8%