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CVE-2016-2114

The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" set…

Impact

The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.

Affected products

VendorProductAffected versions
SambaSamba
Versions 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5
CanonicalUbuntu Linux
Versions 14.04, 15.10, 16.04

Weakness classification

CWE-254

References