CVE-2018-3761
Description
Nextcloud Server before 12.0.8 and 13.0.3 suffer from improper authentication on the OAuth2 token endpoint. Missing checks potentially allowed handing out new tokens in case the OAuth2 client was partly compromised.
References
Vendor Advisory
Third Party Advisory
CvssV3 impact
BaseSeverity | HIGH |
ConfidentialityImpact | HIGH |
AttackComplexity | LOW |
Scope | UNCHANGED |
AttackVector | NETWORK |
AvailabilityImpact | NONE |
IntegrityImpact | HIGH |
PrivilegesRequired | NONE |
BaseScore | 8.1 |
VectorString | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
Version | 3.0 |
UserInteraction | REQUIRED |
CvssV2 impact
Version | 2.0 |
VectorString | AV:N/AC:M/Au:N/C:P/I:P/A:N |
AccessVector | NETWORK |
AccessComplexity | MEDIUM |
Authentication | NONE |
ConfidentialityImpact | PARTIAL |
IntegrityImpact | PARTIAL |
AvailabilityImpact | NONE |
BaseScore | 5.800000190734863 |