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ubuntucveUbuntu.comUB:CVE-2020-7019
HistoryAug 18, 2020 - 12:00 a.m.

CVE-2020-7019

2020-08-1800:00:00
ubuntu.com
ubuntu.com
15
elasticsearch
field disclosure
scrolling search
field level security
attacker gaining permissions

CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

28.4%

In Elasticsearch before 7.9.0 and 6.8.12 a field disclosure flaw was found
when running a scrolling search with Field Level Security. If a user runs
the same query another more privileged user recently ran, the scrolling
search can leak fields that should be hidden. This could result in an
attacker gaining additional permissions against a restricted index.

OSVersionArchitecturePackageVersionFilename
ubuntu16.04noarchelasticsearch< anyUNKNOWN

CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

28.4%