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MitreCVE-2021-40084

HistoryAug 25, 2021 - 1:15 a.m.

CVE-2021-40084

2021-08-2501:15:12

CWE-94

mitre

web.nvd.nist.gov

cve-2021-40084

opensysusers

security vulnerability

eval usage

command execution

nvd

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.005

Percentile

75.8%

JSON

opensysusers through 0.6 does not safely use eval on files in sysusers.d that may contain shell metacharacters. For example, it allows command execution via a crafted GECOS field whereas systemd-sysusers (a program with the same specification) does not do that.

Affected configurations

Nvd

Node

artixlinuxopensysusersRange≤0.6

VendorProductVersionCPE
artixlinuxopensysusers*cpe:2.3:a:artixlinux:opensysusers:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
artixlinux	opensysusers	*	cpe:2.3:a:artixlinux:opensysusers::::::::

References

bugs.debian.org/992058

github.com/artix-linux/opensysusers/releases

Social References

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.005

Percentile

75.8%

JSON

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