High severity · published Nov 19, 2020
CVE-2020-8279
Missing validation of server certificates for out-going connections in Nextcloud Social < 0.4.0 allowed a man-in-the-middle attack
7.4
CVSS
0.6%
EPSS
No
On KEV
Description
Missing validation of server certificates for out-going connections in Nextcloud Social < 0.4.0 allowed a man-in-the-middle attack.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SO
Social · Nextcloud
before 0.4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8279
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8279
Exploit
https://hackerone.com/reports/915585
Broken Link
https://nextcloud.com/security/advisory/?id=NC-SA-2020-043
More from Social
5.3
CVE-2020-8278
Improper access control in Nextcloud Social app version 0.3.1 allowed to read posts of any user