Security restrictions bypass in Rsync - CVE-2017-17433

 

Security restrictions bypass in Rsync - CVE-2017-17433

Published: December 11, 2017


Vulnerability identifier: #VU9608
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-17433
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Samba
Affected software:
Rsync

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to the recv_files function in receiver.c in the daemon proceeds with certain file metadata updates before checking for a filename in the daemon_filter_list data structure. A remote attacker can bypass intended access restrictions.

How to mitigate CVE-2017-17433

Install update from vendor's website.

Sources