Monthly Archive: February 2020

Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link. Date published :...

Improper access control in Nextcloud Talk 6.0.3 leaks the existance and the name of private conversations when linked them to another shared item via the projects feature. Date published : 2020-02-04 https://hackerone.com/reports/662218 https://nextcloud.com/security/advisory/?id=NC-SA-2020-011

Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3, Nextcloud Talk 6.0.3 and Nextcloud Deck 0.6.5 causes an XSS when linking them with each others in a project. Date...

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location. Date published : 2020-02-04 https://hackerone.com/reports/515484 https://nextcloud.com/security/advisory/?id=NC-SA-2020-007

A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login. Date published : 2020-02-04 https://hackerone.com/reports/722748 https://nextcloud.com/security/advisory/?id=NC-SA-2020-006

Dangling remote share attempts in Nextcloud 16 allow a DNS pollution when running long. Date published : 2020-02-04 https://hackerone.com/reports/592864 https://nextcloud.com/security/advisory/?id=NC-SA-2020-005

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. Date published : 2020-02-04 https://hackerone.com/reports/747726...

Missing sanitization in the iOS App 2.24.4 causes an XSS when opening malicious HTML files. Date published : 2020-02-04 https://hackerone.com/reports/575562 https://nextcloud.com/security/advisory/?id=NC-SA-2020-003

A bug in Nextcloud Server 17.0.1 causes the workflow rules to depend their behaviour on the file extension when checking file mimetypes. Date published : 2020-02-04 https://hackerone.com/reports/697959 https://nextcloud.com/security/advisory/?id=NC-SA-2020-002

A bug in Nextcloud Server 15.0.2 causes pending 2FA logins to not be correctly expired when the password of the user is reset. Date published : 2020-02-04 https://hackerone.com/reports/486693 https://nextcloud.com/security/advisory/?id=NC-SA-2020-001

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....

Improper authorization in the Circles app 0.17.7 causes retaining access when an email address was removed from a circle. Date published : 2020-02-04 https://hackerone.com/reports/673724 https://nextcloud.com/security/advisory/?id=NC-SA-2019-013

An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users’ sessions or non-Squid processes....

im-metadata through 3.0.1 allows remote attackers to execute arbitrary commands via the "exec" argument. It is possible to inject arbitrary commands as part of the metadata options which is given to the "exec" function....