Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Samba | Rsync | <= 3.1.2 |
| Debian | Debian Linux | 8.0 |
References
- http://security.cucumberlinux.com/security/details.php?id=170Third Party Advisory
- https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=5509597decdbd7b91994210f700329
- https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=70aeb5fddd1b2f8e143276f8d5a085
- https://lists.debian.org/debian-lts-announce/2017/12/msg00020.html
- https://www.debian.org/security/2017/dsa-4068Third Party Advisory
- http://security.cucumberlinux.com/security/details.php?id=170Third Party Advisory
- https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=5509597decdbd7b91994210f700329
- https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=70aeb5fddd1b2f8e143276f8d5a085
- https://lists.debian.org/debian-lts-announce/2017/12/msg00020.html
- https://www.debian.org/security/2017/dsa-4068Third Party Advisory
FAQ
What is CVE-2017-17434?
CVE-2017-17434 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 d...
How severe is CVE-2017-17434?
CVE-2017-17434 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-17434?
Check the references section above for vendor advisories and patch information. Affected products include: Samba Rsync, Debian Debian Linux.