Improper Authentication Affecting rsync package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CENTOS7-RSYNC-1980585
- published26 Jul 2021
- disclosed4 Dec 2017
Introduced: 4 Dec 2017
CVE-2017-17434 (opens in a new tab)How to fix?
There is no fixed version for Centos:7 rsync.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rsync package and not the rsync package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
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.
References
- http://security.cucumberlinux.com/security/details.php?id=170
- https://access.redhat.com/security/cve/CVE-2017-17434
- https://www.debian.org/security/2017/dsa-4068
- https://git.samba.org/?p=rsync.git;a=commit;h=5509597decdbd7b91994210f700329d8a35e70a1
- https://git.samba.org/?p=rsync.git;a=commit;h=70aeb5fddd1b2f8e143276f8d5a085db16c593b9
- https://lists.debian.org/debian-lts-announce/2017/12/msg00020.html
- https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=5509597decdbd7b91994210f700329d8a35e70a1
- https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=70aeb5fddd1b2f8e143276f8d5a085db16c593b9