Auth bypass in Samba Rsync
CVE-2017-17433
The recv_files function in receiver.c in the daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, proceeds with certain file metadata updates before checking for a filename in the daemon_filter_list data structure, which allows remote attackers to bypass intended access restrictions.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.018 (77.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Samba Rsync — versions 3.1.2
- Debian Linux — versions 7.0, 8.0, 9.0
Weakness classification (CWE)
References
- security.cucumberlinux.com/security/details.php (Third Party Advisory)
- git.samba.org/
- www.debian.org/security/2017/dsa-4068 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2017/12/msg00020.html (mailing-list, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-17433?
- CVE-2017-17433 is a low-severity vulnerability in Samba Rsync, classified under Missing Authorization. CVSS score: 3.7/10. Published 2017-12-06.
- How severe is CVE-2017-17433?
- Low severity. CVSS v3 base score is 3.7 out of 10.