CVE-2017-17434
9.8
CRITICAL
CVSS 3.1
EPSS 1.2%
Description
The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not check for fnamecmp filenames in the daemon_filter_list data structure (in the recv_files function in receiver.c) and also does not apply the sanitize_paths protection mechanism to pathnames found in "xname follows" strings (in the read_ndx_and_attrs function in rsync.c), which allows remote attackers to bypass intended access restrictions.
How to fix CVE-2017-17434
To remediate CVE-2017-17434, upgrade the affected package to a fixed version below.
- —upgrade to 3.1.2-r7 or later
- —upgrade to 3.1.2-2.1 or later
Is CVE-2017-17434 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.1.2-r7
- from 0, < 3.1.2-2.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |