CVE-2017-17434
moderate-risk
Published 2017-12-06
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.
Do I need to act?
~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (3)
References (10)
Third Party Advisory
http://security.cucumberlinux.com/security/details.php?id=170
Third Party Advisory
https://www.debian.org/security/2017/dsa-4068
Third Party Advisory
http://security.cucumberlinux.com/security/details.php?id=170
Third Party Advisory
https://www.debian.org/security/2017/dsa-4068
44
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
3/34 · Minimal
Exposure
9/34 · Low