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cveMitreCVE-2021-43566
HistoryJan 11, 2022 - 4:15 p.m.

CVE-2021-43566

2022-01-1116:15:07
CWE-362
mitre
web.nvd.nist.gov
246
samba
cve-2021-43566
directory creation
malicious client
security vulnerability
smb1
nfs
server file system

CVSS2

1.2

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:H/Au:N/C:N/I:P/A:N

CVSS3

2.5

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

3.8

Confidence

High

EPSS

0.001

Percentile

44.9%

JSON

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.

Affected configurations

Nvd
Node
sambasambaRange<4.13.16
VendorProductVersionCPE
sambasamba*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*

Related

prion 1
osv 2
redhatcve 1
nessus 20
rocky 1
ubuntucve 1
debiancve 1
openvas 15
ibm 2
cisa 1
cnvd 1
samba 1
cvelist 1
veracode 1
alpinelinux 1
nvd 1
cbl_mariner 1
ubuntu 1
freebsd 1
suse 1
prion
prion
Design/Logic Flaw
2022-01-11 16:15:00
osv
osv
CVE-2021-43566
2022-01-11 16:15:07
samba vulnerabilities
2022-02-01 11:52:14
redhatcve
redhatcve
CVE-2021-43566
2022-01-11 05:28:47
nessus
nessus
Samba 4.13.x < 4.13.16 Arbitrary Directory Write
2022-01-14 00:00:00
EulerOS Virtualization 2.10.0 : samba (EulerOS-SA-2022-2038)
2022-07-15 00:00:00
EulerOS Virtualization 3.0.6.0 : samba (EulerOS-SA-2022-2589)
2022-10-10 00:00:00
rocky
rocky
samba bug fix and enhancement update
2021-11-09 09:21:40
ubuntucve
ubuntucve
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2022-01-11 00:00:00
debiancve
debiancve
CVE-2021-43566
2022-01-11 16:15:07
openvas
openvas
Samba Share Escape Vulnerability (CVE-2021-43566)
2022-01-10 00:00:00
Huawei EulerOS: Security Advisory for samba (EulerOS-SA-2022-2589)
2022-10-12 00:00:00
Ubuntu: Security Advisory (USN-5260-1)
2022-02-02 00:00:00
ibm
ibm
Security Bulletin: A vulnerability in Samba affects IBM Spectrum Scale SMB protocol access method (CVE-2021-43566)
2022-04-27 11:10:48
Security Bulletin: IBM i is vulnerable to bypass security restrictions due to Samba SMB1 (CVE-2021-43566 and CVE-2021-44141)
2022-03-02 14:24:21
cisa
cisa
Samba Releases Security Update
2022-01-11 00:00:00
cnvd
cnvd
Samba competition condition issue vulnerability
2022-01-12 00:00:00
samba
samba
Symlink race error can allow directory creation
2022-01-10 00:00:00
cvelist
cvelist
CVE-2021-43566
2022-01-11 15:15:01
veracode
veracode
Directory Traversal
2022-02-03 20:44:50
alpinelinux
alpinelinux
CVE-2021-43566
2022-01-11 16:15:07
nvd
nvd
CVE-2021-43566
2022-01-11 16:15:07
cbl_mariner
cbl_mariner
CVE-2021-43566 affecting package samba 4.12.5-6
2024-09-30 03:52:42
ubuntu
ubuntu
Samba vulnerabilities
2022-02-01 00:00:00
freebsd
freebsd
samba -- Multiple Vulnerabilities
2022-01-31 00:00:00
suse
suse
Security update for samba (important)
2022-02-01 00:00:00

CVSS2

1.2

Attack Vector

LOCAL

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:H/Au:N/C:N/I:P/A:N

CVSS3

2.5

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

3.8

Confidence

High

EPSS

0.001

Percentile

44.9%

JSON
Related for CVE-2021-43566
prion1osv2redhatcve1nessus20rocky1ubuntucve1debiancve1openvas15ibm2cisa1cnvd1samba1cvelist1veracode1alpinelinux1nvd1cbl_mariner1ubuntu1freebsd1suse1