CVE-2016-2119
libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1)…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 3.10% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- samba/samba
- Source
- secalert@redhat.com
References
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1486.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1487.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1494.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
- http://www.securityfocus.com/bid/91700Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036244Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201805-07Third Party Advisory
- https://www.samba.org/samba/security/CVE-2016-2119.htmlVendor Advisory
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1486.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1487.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1494.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
- http://www.securityfocus.com/bid/91700Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036244Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201805-07Third Party Advisory
- https://www.samba.org/samba/security/CVE-2016-2119.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.