Nextcloud: >> Nextcloud Security Vulnerabilities
Nextcloud Android Client is the Android client for Nextcloud. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.16.1, the Nextcloud Android client skipped a step that involved the client checking if a private key belonged to a previously downloaded public certificate. If the Nextcloud instance served a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. The vulnerability is patched in version 3.16.1. As a workaround, do not add additional end-to-end encrypted devices to a user account.
CVSS Score
5.7
EPSS Score
0.002
Published
2021-07-12
Nextcloud Android app is the Android client for Nextcloud. In versions prior to 3.15.1, a malicious application on the same device is possible to crash the Nextcloud Android Client due to an uncaught exception. The vulnerability is patched in version 3.15.1.
CVSS Score
4.1
EPSS Score
0.002
Published
2021-06-17
Nextcloud Android app is the Android client for Nextcloud. In versions prior to 3.16.1, a malicious app on the same device could have gotten access to the shared preferences of the Nextcloud Android application. This required user-interaction as a victim had to initiate the sharing flow and choose the malicious app. The shared preferences contain some limited private data such as push tokens and the account name. The vulnerability is patched in version 3.16.1.
CVSS Score
3.9
EPSS Score
0.006
Published
2021-06-17
Nextcloud Android App (com.nextcloud.client) before v3.16.0 is vulnerable to information disclosure due to searches for sharees being performed by default on the lookup server instead of only using the local Nextcloud server unless a global search has been explicitly chosen by the user.
CVSS Score
6.5
EPSS Score
0.004
Published
2021-06-11
Nextcloud iOS before 3.4.2 suffers from an information disclosure vulnerability when searches for sharees utilize the lookup server by default instead of only on the local Nextcloud server unless a global search has been explicitly chosen by the user.
CVSS Score
6.5
EPSS Score
0.007
Published
2021-06-11
Nextcloud Mail before 1.9.5 suffers from improper access control due to a missing permission check allowing other authenticated users to create mail aliases for other users.
CVSS Score
4.3
EPSS Score
0.003
Published
2021-06-11
Nextcloud Android is the Android client for the Nextcloud open source home cloud system. Due to a timeout issue the Android client may not properly clean all sensitive data on account removal. This could include sensitive key material such as the End-to-End encryption keys. It is recommended that the Nextcloud Android App is upgraded to 3.16.1
CVSS Score
4.7
EPSS Score
0.001
Published
2021-06-08
A wrong check for the system time in the Android App 3.9.0 causes a bypass of the lock protection when changing the time of the system to the past.
CVSS Score
6.1
EPSS Score
0.001
Published
2020-02-04
Not strictly enough sanitization in the Nextcloud Android app 3.6.0 allowed an attacker to get content information from protected tables when using custom queries.
CVSS Score
2.4
EPSS Score
0.001
Published
2020-02-04
Violation of Secure Design Principles in the iOS App 2.23.0 causes the app to leak its login and token to other Nextcloud services when search e.g. for federated users or registering for push notifications.
CVSS Score
4.9
EPSS Score
0.007
Published
2020-02-04