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GoogleOSV:BIT-MASTODON-2022-46405

HistoryMar 06, 2024 - 10:57 a.m.

BIT-mastodon-2022-46405

2024-03-0610:57:12

Google

osv.dev

mastodon

dos

vulnerability

sidekiq

dns

recursion

attackers

bot accounts

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.7

Confidence

High

EPSS

0.001

Percentile

38.1%

JSON

Mastodon through 4.0.2 allows attackers to cause a denial of service (large Sidekiq pull queue) by creating bot accounts that follow attacker-controlled accounts on certain other servers associated with a wildcard DNS A record, such that there is uncontrolled recursion of attacker-generated messages.

References

borg.social/notes/98bcoo2t1n

hackmd.io/rD9nsTz1QeuPT-erxqjY-A

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.7

Confidence

High

EPSS

0.001

Percentile

38.1%

JSON

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