CVE-2015-5299: Infoleak
The Samba Project reports:
All versions of Samba from 3.2.0 to 4.3.1 inclusive are vulnerable to a missing access control check in the vfsshadowcopy2 module. When looking for the shadow copy directory under the share path the current accessing user should have DIRECTORYLIST access rights in order to view the current snapshots.
This was not being checked in the affected versions of Samba.
https://bugzilla.samba.org/showbug.cgi?id=11529
Other sources
The shadowcopy2getshadowcopydata function in modules/vfsshadowcopy2.c in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 does not verify that the DIRECTORYLIST access right has been granted, which allows remote attackers to access snapshots by visiting a shadow copy directory.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2015-5299?
CVE-2015-5299 has a medium severity rating due to improper access controls that may allow unauthorized information exposure.
How do I fix CVE-2015-5299?
To fix CVE-2015-5299, upgrade Samba to a version greater than 4.3.3, 4.2.7, or 4.1.22.
Which versions of Samba are affected by CVE-2015-5299?
CVE-2015-5299 affects all versions of Samba from 3.2.0 to 4.3.1 inclusive.
What is the nature of the vulnerability in CVE-2015-5299?
The vulnerability in CVE-2015-5299 is a missing access control check in the vfs_shadow_copy2 module.
Can CVE-2015-5299 lead to any security risks?
Yes, CVE-2015-5299 may allow unauthorized users to access sensitive files via shadow copy functionality.