Low severity · published Nov 2, 2020
CVE-2020-8173
A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended
2.2
CVSS
0.4%
EPSS
No
On KEV
Description
A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
before 17.0.7; 18.0.0 before 18.0.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8173
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8173
Exploit
https://hackerone.com/reports/852841
Broken Link
https://nextcloud.com/security/advisory/?id=NC-SA-2020-023
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