Path Traversal and Access Restriction Bypass in rsync Daemon
CVE-2017-17434

9.8CRITICAL

Key Information:

Vendor

Samba

Status
Rsync
Vendor
CVE Published:
6 December 2017

What is CVE-2017-17434?

The rsync daemon in versions 3.1.2 and 3.1.3-development before December 3, 2017, is susceptible to vulnerabilities that fail to validate filename comparisons in the daemon_filter_list. Furthermore, these versions do not implement the sanitize_paths protection mechanism for pathnames located within 'xname follows' strings. As a result, remote attackers can exploit these flaws to bypass security restrictions, potentially accessing unintended files or directories.

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References

https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=70aeb5f...
x_refsource_MISC
http://security.cucumberlinux.com/security/details.php?id...
x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-4068
vendor-advisoryx_refsource_DEBIAN

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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