FreeBSD4729C849-4897-11E6-B704-000C292E4FD8samba -- client side SMB2/3 required signing can be downgraded
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.005 Low
EPSS
Percentile
76.3%
Samba team reports:
A man in the middle attack can disable client signing over
SMB2/3, even if enforced by configuration parameters.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| FreeBSD | any | noarch | samba4 | = 4.0.0 | UNKNOWN |
| FreeBSD | any | noarch | samba4 | <= 4.0.26 | UNKNOWN |
| FreeBSD | any | noarch | samba41 | = 4.1.0 | UNKNOWN |
| FreeBSD | any | noarch | samba41 | <= 4.1.23 | UNKNOWN |
| FreeBSD | any | noarch | samba42 | = 4.2.0 | UNKNOWN |
| FreeBSD | any | noarch | samba42 | < 4.2.14 | UNKNOWN |
| FreeBSD | any | noarch | samba43 | = 4.3.0 | UNKNOWN |
| FreeBSD | any | noarch | samba43 | < 4.3.11 | UNKNOWN |
| FreeBSD | any | noarch | samba44 | = 4.4.0 | UNKNOWN |
| FreeBSD | any | noarch | samba44 | < 4.4.5 | UNKNOWN |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.005 Low
EPSS
Percentile
76.3%