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ubuntucveUbuntu.comUB:CVE-2020-28407
HistoryNov 03, 2023 - 12:00 a.m.

CVE-2020-28407

2023-11-0300:00:00
ubuntu.com
ubuntu.com
6
swtpm
symlink attack
overwrite files
local attacker
temporary file

CVSS3

7.1

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

AI Score

6.4

Confidence

Low

EPSS

0

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.

Bugs

CVSS3

7.1

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

AI Score

6.4

Confidence

Low

EPSS

0

Percentile

5.1%