The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote
The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism.
- Published
- Jan 17, 2018
- Updated
- Jun 16, 2026
- EPSS
- 6.4% · 93th percentile
- CWE
- —
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 6.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| samba | rsync | cpe:2.3:a:samba:rsync |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux14.04
- canonical ubuntu linux16.04
- canonical ubuntu linux17.10
- debian debian linux7.0
- debian debian linux8.0
- debian debian linux9.0
- samba rsyncbefore 3.1.3
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Alpine:v3.4 | rsync | before 3.1.3-r0 | 3.1.3-r0 |
| Debian:12 | rsync | before 3.1.2-2.2 | 3.1.2-2.2 |
| Debian:7 | rsync | before 3.0.9-4+deb7u2 | 3.0.9-4+deb7u2 |
| Debian:8 | rsync | before 3.1.1-3+deb8u2 | 3.1.1-3+deb8u2 |
| Debian:9 | rsync | before 3.1.2-1+deb9u3 | 3.1.2-1+deb9u3 |
| openSUSE:Tumbleweed | rsync | before 3.2.3-2.6 | 3.2.3-2.6 |
| SUSE:Linux Enterprise Desktop 12 SP2 | rsync | before 3.1.0-13.10.1 | 3.1.0-13.10.1 |
| SUSE:Linux Enterprise Server 11 SP4 | rsync | before 3.0.4-2.53.6.1 | 3.0.4-2.53.6.1 |
Same product
samba: all recordsOther highest-scoring records for the same primary product.
- CVE-2024-12084Rsync: heap buffer overflow in rsync due to improper checksum length handling61This week
- CVE-2017-16548The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, w41Plan
- CVE-2017-17434The 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 str40Plan
- CVE-2017-15994rsync 3.1.3-development before 2017-10-24 mishandles archaic checksums, which makes it easier for remote attackers to bypass intended access39Monitor
- CVE-2026-53791rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header36Monitor
- CVE-2026-70461rsync 3.2.5 < 3.5.0 Heap Out-of-Bounds Write via files-from Entry35Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| alpine:rsync | 3.1.3-r0 · Alpine:v3.4 | Package registry (OSV) |
| debian:rsync | 3.1.2-2.2 · Debian:12 | Package registry (OSV) |
| opensuse:rsync | 3.2.3-2.6 · openSUSE:Tumbleweed | Package registry (OSV) |
| suse:rsync | 3.0.4-2.53.6.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:0 | 2025-09-10 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+2792 d
- TodaySep 30, 2026+3178 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.securityfocus.com/bid/102803
- www.securitytracker.com/id/1040276
- download.samba.org/pub/rsync/src-previews/rsync-3.1.3pre1-NEWS
- git.samba.org/rsync.git/?p=rsync.git%3Ba=commit%3Bh=7706303828fcde524222babb2833864a4bd09e07
- lists.debian.org/debian-lts-announce/2018/01/msg00021.html
- lists.debian.org/debian-lts-announce/2019/03/msg00027.html
- lists.debian.org/debian-lts-announce/2021/11/msg00028.html
- security.gentoo.org/glsa/201805-04
- usn.ubuntu.com/3543-1/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.