CVE-2017-0887

low-risk
Published 2017-04-05

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a bypass in the quota limitation. Due to not properly sanitizing values provided by the `OC-Total-Length` HTTP header an authenticated adversary may be able to exceed their configured user quota. Thus using more space than allowed by the administrator.

Do I need to act?

-
0.25% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Nextcloud

References (4)

Third Party Advisory https://hackerone.com/reports/173622
Broken Link https://nextcloud.com/security/advisory/?id=nc-sa-2017-005
Third Party Advisory https://hackerone.com/reports/173622
Broken Link https://nextcloud.com/security/advisory/?id=nc-sa-2017-005
24
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal