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osvGoogleOSV:CVE-2020-28407
HistoryNov 03, 2023 - 4:15 a.m.

CVE-2020-28407

2023-11-0304:15:15
Google
osv.dev
3
swtpm
local attacker
symlink attack
overwrite files
temporary file

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

In swtpm before 0.4.2 and 0.5.x before 0.5.1, a local attacker may be able to overwrite arbitrary files via a symlink attack against a temporary file such as TMP2-00.permall.

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%