Free and open-source vulnerability scanner
Mageni eases for you the vulnerability scanning, assessment, and management process. It is free and open-source.
Install NowAvailable for macOS, Windows, and Linux
Samba 3.6.0 < 4.12.15, 4.13.0 < 4.13.8, 4.14.0 < 4.14.4 File Access Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Samba is prone to a unauthorized file access vulnerability.
Insight
Insight
The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. Most commonly this flaw causes the calling code to crash, but it was found that an unprivileged user may be able to delete a file within a network share that they should have been disallowed access to.
Affected Software
Affected Software
Samba version 3.6.0 and later.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 4.12.15, 4.13.8, 4.14.4 or later.