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cve[email protected]CVE-2020-8616
HistoryMay 19, 2020 - 2:15 p.m.

CVE-2020-8616

2020-05-1914:15:00
CWE-400
[email protected]
web.nvd.nist.gov
642
cve-2020-8616
malicious actor
limitation
fetches
referrals
recursing server
performance
degradation
reflector
reflection attack
amplification factor
nvd

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.023 Low

EPSS

Percentile

89.6%

JSON

A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and The attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor.

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8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.023 Low

EPSS

Percentile

89.6%

JSON
Related for CVE-2020-8616
f51redhat17nessus60alpinelinux1veracode1osv3debiancve1redhatcve1ubuntucve1prion1huawei1oraclelinux4cisa1fedora4openvas28slackware1ibm6ubuntu2debian3altlinux3attackerkb1centos2jvn1aix1archlinux1amazon2mageia1photon6suse2