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CVE-2017-17433

18
FAUCET Score

CVE-2017-17433 describes an access restriction bypass vulnerability in the recv_files function of rsync daemon versions 3.1.2 and 3.1.3-development. This flaw allows remote attackers to bypass intended access restrictions by performing file metadata updates before filename checks, affecting Debian and Samba distributions of rsync. The vulnerability has a CVSS score of 3.7 (LOW), indicating a network-based attack with high complexity and low impact on integrity, with no impact on confidentiality or availability. Its EPSS score is low, suggesting a minimal likelihood of exploitation. Currently, there is no evidence of active exploitation, and no public exploit code exists in Metasploit, Nuclei, or ExploitDB. While there's limited community discussion and media coverage, it is not listed on CISA's KEV catalog or any hot lists.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
3.1.2CPE matchmatch criteria
cpe:2.3:a:samba:rsync:3.1.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

3.7LOW

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.79%
Probability of exploitation in next 30 days
EPSS Percentile
76.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0179 is in the 67th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: rsync
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: rsync
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: rsync

Vendor Advisories (1)

redhatCVE-2017-17433Moderate

rsync: recv_files function metadata handling allows for access restriction bypass

Dec 4, 2017

References

security.cucumberlinux.com / security/details.php
Third Party Advisory
git.samba.org
lists.debian.org / debian-lts-announce/2017/12/msg00020.html
Third Party Advisory
debian.org / security/2017/dsa-4068
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
PatchThird Party Advisory