4.3med

CVE-2017-0884

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue.

Published 9 y ago · modified 4 mo ago · JSON

CVSS
4.3
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.7%
percentile 52%
Public exploits
0
none known

Summary

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue. Due to a logical error in the file caching layer an authenticated adversary is able to create empty folders inside a shared folder. Note that this only affects folders and files that the adversary has at least read-only permissions for.

Exploit prediction (EPSS)

0.67% probability of exploitation in the next 30 days, higher than 52% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.14.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD2.04.0AV:N/AC:L/Au:S/C:N/I:P/A:N

Affected products

  • Nextcloud Nextcloud Server

Classification

Weakness
  • CWE-275 Permission Issues
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

  • nextcloud.com /security/advisory/?id=nc-sa-2017-002 · x_refsource_CONFIRM, x_transferred
  • hackerone.com /reports/169680 · x_refsource_MISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.