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MitreCVE-2020-22781

HistoryApr 28, 2021 - 9:15 p.m.

CVE-2020-22781

2021-04-2821:15:08

CWE-89

mitre

web.nvd.nist.gov

etherpad

cve-2020-22781

denial of service

unhandled exception

cache mechanism

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

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

EPSS

0.001

Percentile

40.6%

JSON

In Etherpad < 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance).

Affected configurations

Nvd

Node

etherpadetherpadRange<1.8.3

VendorProductVersionCPE
etherpadetherpad*cpe:2.3:a:etherpad:etherpad:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
etherpad	etherpad	*	cpe:2.3:a:etherpad:etherpad::::::::

References

github.com/ether/etherpad-lite/issues/3502

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

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

EPSS

0.001

Percentile

40.6%

JSON

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