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osvGoogleOSV:CVE-2022-46179
HistoryDec 28, 2022 - 8:15 a.m.

CVE-2022-46179

2022-12-2808:15:08
Google
osv.dev
3
liuos
python
authentication bypass
github_actions
env variable
patch
workaround

9.2 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.2%

LiuOS is a small Python project meant to imitate the functions of a regular operating system. Version 0.1.0 and prior of LiuOS allow an attacker to set the GITHUB_ACTIONS environment variable to anything other than null or true and skip authentication checks. This issue is patched in the latest commit (c658b4f3e57258acf5f6207a90c2f2169698ae22) by requiring the var to be set to true, causing a test script to run instead of being able to login. A potential workaround is to check for the GITHUB_ACTIONS environment variable and set it to “” (no quotes) to null the variable and force credential checks.

9.2 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.2%

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