CVE-2020-8616
high-risk
Published 2020-05-19
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.
Do I need to act?
!
19.4% chance of exploitation in next 30 days
EPSS score — higher than 81% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10
High
NETWORK
/ LOW complexity
Affected Products (14)
References (26)
Exploit
http://www.nxnsattack.com
Third Party Advisory
https://www.debian.org/security/2020/dsa-4689
Exploit
http://www.nxnsattack.com
and 6 more references
61
/ 100
high-risk
Severity
29/34 · Critical
Exploitability
14/34 · Moderate
Exposure
18/34 · Moderate