It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did not enforce SMB signing when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.
Weakness
The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Samba | Samba | 3.0.25 (including) | 4.4.16 (excluding) |
| Samba | Samba | 4.5.0 (including) | 4.5.14 (excluding) |
| Samba | Samba | 4.6.0 (including) | 4.6.8 (excluding) |
| Red Hat Enterprise Linux 6 | RedHat | samba-0:3.6.23-45.el6_9 | * |
| Red Hat Enterprise Linux 6 | RedHat | samba4-0:4.2.10-11.el6_9 | * |
| Red Hat Enterprise Linux 7 | RedHat | samba-0:4.6.2-11.el7_4 | * |
| Red Hat Gluster Storage 3.3 for RHEL 6 | RedHat | samba-0:4.6.3-6.el6rhs | * |
| Red Hat Gluster Storage 3.3 for RHEL 7 | RedHat | samba-0:4.6.3-6.el7rhgs | * |
| Samba | Ubuntu | artful | * |
| Samba | Ubuntu | devel | * |
| Samba | Ubuntu | esm-infra-legacy/trusty | * |
| Samba | Ubuntu | esm-infra/xenial | * |
| Samba | Ubuntu | trusty | * |
| Samba | Ubuntu | trusty/esm | * |
| Samba | Ubuntu | upstream | * |
| Samba | Ubuntu | xenial | * |
| Samba | Ubuntu | zesty | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/466.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/589.html
- https://cwe.mitre.org/data/definitions/590.html
- https://cwe.mitre.org/data/definitions/612.html
- https://cwe.mitre.org/data/definitions/613.html
- https://cwe.mitre.org/data/definitions/615.html
- https://cwe.mitre.org/data/definitions/662.html
- https://cwe.mitre.org/data/definitions/94.html
References
- http://www.securityfocus.com/bid/100918
- http://www.securitytracker.com/id/1039401
- https://access.redhat.com/errata/RHSA-2017:2789
- https://access.redhat.com/errata/RHSA-2017:2790
- https://access.redhat.com/errata/RHSA-2017:2791
- https://access.redhat.com/errata/RHSA-2017:2858
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12150
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbns03775en_us
- https://security.netapp.com/advisory/ntap-20170921-0001/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03817en_us
- https://www.debian.org/security/2017/dsa-3983
- https://www.samba.org/samba/security/CVE-2017-12150.html
- http://www.securityfocus.com/bid/100918
- http://www.securitytracker.com/id/1039401
- https://access.redhat.com/errata/RHSA-2017:2789
- https://access.redhat.com/errata/RHSA-2017:2790
- https://access.redhat.com/errata/RHSA-2017:2791
- https://access.redhat.com/errata/RHSA-2017:2858
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12150
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbns03775en_us
- https://security.netapp.com/advisory/ntap-20170921-0001/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03817en_us
- https://www.debian.org/security/2017/dsa-3983
- https://www.samba.org/samba/security/CVE-2017-12150.html