CVE-2020-14387
published 2021-05-27CVE-2020-14387: A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated…
PriorityP343high7.4CVSS 3.1
AVNACHPRNUINSUCHIHAN
EPSS
1.10%
61.9th percentile
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.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | rsync | < rsync 3.2.3-3 (bookworm) | rsync 3.2.3-3 (bookworm) |
| msrc | cbl2_rsync_3.2.3-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| samba | rsync | — | — |
| samba | rsync | — | — |
| samba | rsync | >= 0 < 3.2.3-3 | 3.2.3-3 |
| samba | rsync | >= 0 < 3.2.3-3 | 3.2.3-3 |
| samba | rsync | >= 0 < 3.2.3-3 | 3.2.3-3 |
| samba | rsync | >= 0 < 3.2.3-3 | 3.2.3-3 |
| samba | rsync | >= 3.2.1 < 3.2.4 | 3.2.4 |
CVSS provenance
nvdv3.17.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
nvdv2.05.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
osv7.4HIGH
vendor_debian7.4HIGH
vendor_msrc7.4HIGH
vendor_redhat7.4HIGH
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Microsoft
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
vendor_msrc·2021-05-11·CVSS 7.4
CVE-2020-14387 [HIGH] CWE-297 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
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secu
Red Hat
rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl
vendor_redhat·2020-09-03·CVSS 7.4
CVE-2020-14387 [HIGH] CWE-297 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl
rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl
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.
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-th
Debian
CVE-2020-14387: rsync - A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validate...
vendor_debian·2020·CVSS 7.4
CVE-2020-14387 [HIGH] CVE-2020-14387: rsync - A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validate...
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.
Scope: local
bookworm: resolved (fixed in 3.2.3-3)
bullseye: resolved (fixed in 3.2.3-3)
forky: resolved (fixed in 3.2.3-3)
sid: resolved (fixed in 3.2.3-3)
trixie: resolved (fixed in 3.2.3-3)
GHSA
GHSA-5gm2-c485-9q6q: A flaw was found in rsync in versions since 3
ghsa_unreviewed·2022-05-24
CVE-2020-14387 [HIGH] CWE-297 GHSA-5gm2-c485-9q6q: A flaw was found in rsync in versions since 3
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.
OSV
CVE-2020-14387: A flaw was found in rsync in versions since 3
osv·2021-05-27·CVSS 7.4
CVE-2020-14387 [HIGH] CVE-2020-14387: A flaw was found in rsync in versions since 3
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-14387 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl
bugzilla·2020-09-03·CVSS 7.4
CVE-2020-14387 [HIGH] CVE-2020-14387 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl
CVE-2020-14387 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl
In rsync > 3.2.0pre1, rsync-ssl does not verify the hostname in the server certificate in openssl mode, so a man-in-the-middle attacker with a valid certificate for another hostname could intercept connections.
Upstream patch: https://git.samba.org/?p=rsync.git;a=commit;h=c3f7414
Discussion:
Acknowledgments:
Name: Matt McCutchen
---
Created rsync tracking bugs for this issue:
Affects: fedora-32 [bug 1875550]
---
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):
https://access.redhat.com/security/cve/cve-2020-14387
---
Hi
The information that the issue is fixed in 3.2.3: is this correct? Upstream commit c3f7414c450f ("rsy
Bugzilla
CVE-2020-14387 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl [fedora-32]
bugzilla·2020-09-03·CVSS 7.4
CVE-2020-14387 [HIGH] CVE-2020-14387 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl [fedora-32]
CVE-2020-14387 rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl [fedora-32]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-32.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Discussion:
2021-05-27
Published