CVE-2020-14387

Published on: 05/27/2021 12:00:00 AM UTC

Last Modified on: 06/09/2021 02:54:00 PM UTC

CVE-2020-14387

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Certain versions of Rsync from Samba contain the following vulnerability:

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.

CVE-2020-14387 has been assigned by [email protected] to track the vulnerability - currently rated as HIGH severity.

CVSS3 Score: 7.4 - HIGH

Attack Vector ^ⓘ	Attack Complexity	Privileges Required	User Interaction
NETWORK	HIGH	NONE	NONE
Scope	Confidentiality Impact	Integrity Impact	Availability Impact
UNCHANGED	HIGH	HIGH	NONE

CVSS2 Score: 5.8 - MEDIUM

Access Vector^ⓘ	Access Complexity	Authentication
NETWORK	MEDIUM	NONE
Confidentiality Impact	Integrity Impact	Availability Impact
PARTIAL	PARTIAL	NONE

CVE References

Description	Tags ^ⓘ	Link
1875549 – (CVE-2020-14387) CVE-2020-14387 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl	bugzilla.redhat.com text/html	MISC bugzilla.redhat.com/show_bug.cgi?id=1875549

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Related QID Numbers

296053 Oracle Solaris 11.4 Support Repository Update (SRU) 35.94.4 Missing (CPUJUL2021)
502234 Alpine Linux Security Update for rsync
502472 Alpine Linux Security Update for rsync
901157 Common Base Linux Mariner (CBL-Mariner) Security Update for rsync (7462-1)

Known Affected Configurations (CPE V2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Application	Samba	Rsync	All	All	All	All
Application	Samba	Rsync	3.2.0	-	All	All
Application	Samba	Rsync	3.2.0	pre1	All	All
Application	Samba	Rsync	3.2.0	pre2	All	All
Application	Samba	Rsync	3.2.0	pre3	All	All

cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*:
cpe:2.3:a:samba:rsync:3.2.0:-:*:*:*:*:*:*:
cpe:2.3:a:samba:rsync:3.2.0:pre1:*:*:*:*:*:*:
cpe:2.3:a:samba:rsync:3.2.0:pre2:*:*:*:*:*:*:
cpe:2.3:a:samba:rsync:3.2.0:pre3:*:*:*:*:*:*:

No vendor comments have been submitted for this CVE

Social Mentions

Source	Title	Posted (UTC)
@CVEreport	CVE-2020-14387 : A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with… twitter.com/i/web/status/1…	2021-05-27 20:06:02
/r/netcve	CVE-2020-14387	2021-05-27 20:41:42