Improper Access Control Affecting samba package, versions <0:4.2.3-12.31.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.3% (70th percentile)

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  • Snyk IDSNYK-AMZN201803-SAMBA-1694670
  • published27 Sept 2021
  • disclosed13 Mar 2016

Introduced: 13 Mar 2016

CVE-2015-7560  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 samba to version 0:4.2.3-12.31.amzn1 or higher.
This issue was patched in ALAS-2016-674.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

The SMB1 implementation in smbd in Samba 3.x and 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4 allows remote authenticated users to modify arbitrary ACLs by using a UNIX SMB1 call to create a symlink, and then using a non-UNIX SMB1 call to write to the ACL content.

CVSS Scores

version 3.1