A flaw was found in rsync in versions since 3.2.0pre1.
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | rsync | rsync 3.2.4 | — | No fix listed | CNA |
- rsync Vendor— Affected rsync 3.2.4 Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:* | 3.2.1 to before 3.2.4 | Vulnerable | Samba |
| cpe:2.3:a:samba:rsync:3.2.0:-:*:*:*:*:*:* | 3.2.0 | Vulnerable | Samba |
| cpe:2.3:a:samba:rsync:3.2.0:pre1:*:*:*:*:*:* | 3.2.0 pre1 | Vulnerable | Samba |
| cpe:2.3:a:samba:rsync:3.2.0:pre2:*:*:*:*:*:* | 3.2.0 pre2 | Vulnerable | Samba |
| cpe:2.3:a:samba:rsync:3.2.0:pre3:*:*:*:*:*:* | 3.2.0 pre3 | Vulnerable | Samba |
- cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:* Versions 3.2.1 to before 3.2.4 Vulnerable ·Samba
- cpe:2.3:a:samba:rsync:3.2.0:-:*:*:*:*:*:* Versions 3.2.0 Vulnerable ·Samba
- cpe:2.3:a:samba:rsync:3.2.0:pre1:*:*:*:*:*:* Versions 3.2.0 pre1 Vulnerable ·Samba
- cpe:2.3:a:samba:rsync:3.2.0:pre2:*:*:*:*:*:* Versions 3.2.0 pre2 Vulnerable ·Samba
- cpe:2.3:a:samba:rsync:3.2.0:pre3:*:*:*:*:*:* Versions 3.2.0 pre3 Vulnerable ·Samba
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2020-14387
- 2026-10-03 Alias added: GHSA-5gm2-c485-9q6q
References
More Samba Rsync vulnerabilities
- TI-2024-11208 Rsync: heap buffer overflow in rsync due to improper checksum length handling CVSS 3.1CRITICAL 9.8
- TI-2024-11209 Rsync: info leak via uninitialized stack contents CVSS 3.1HIGH 7.5
- TI-2024-11212 Rsync: --safe-links option bypass leads to path traversal CVSS 3.1HIGH 7.5
- TI-2024-11211 Rsync: path traversal vulnerability in rsync CVSS 3.1HIGH 7.5
- TI-2024-11210 Rsync: rsync server leaks arbitrary client files CVSS 3.1MEDIUM 6.8
- TI-2017-12160 The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-14387 · CVE Program
- CVE-2020-14387 · NVD
- FIRST EPSS
- GHSA-5gm2-c485-9q6q · GitHub Advisory Database · CC BY 4.0
- CVE-2020-14387 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences