Security restrictions bypass in Samba - CVE-2018-16857

 

Security restrictions bypass in Samba - CVE-2018-16857

Published: November 28, 2018


Vulnerability identifier: #VU16159
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-16857
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Samba
Affected software:
Samba

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists due to AD DC configurations watching for bad passwords (to restrict brute forcing of passwords) in a window of more than 3 minutes may not watch for bad passwords at all. A remote attacker can bypass security restrictions and modify arbitrary data.


How to mitigate CVE-2018-16857

Update to version 4.9.3.

Sources