Podatność CVE-2020-8616


Publikacja: 2020-05-19

Opis:
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.

Typ:

CWE-400

(Uncontrolled Resource Consumption ('Resource Exhaustion'))

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

Ogólna skala CVSS
Znaczenie
Łatwość wykorzystania
5/10
2.9/10
10/10
Wymagany dostęp
Złożoność ataku
Autoryzacja
Zdalny
Niska
Nie wymagana
Wpływ na poufność
Wpływ na integralność
Wpływ na dostępność
Brak
Brak
Częściowy
Affected software
ISC -> BIND 
Debian -> Debian linux 

 Referencje:
http://www.nxnsattack.com
http://www.openwall.com/lists/oss-security/2020/05/19/4
https://kb.isc.org/docs/cve-2020-8616
https://security.netapp.com/advisory/ntap-20200522-0002/
https://usn.ubuntu.com/4365-2/
https://www.debian.org/security/2020/dsa-4689

Copyright 2020, cxsecurity.com

 

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