CVE-2020-8133

A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file...

CVE-2020-8133

Nextcloud Server 19.0.1 vulnerability (CVE-2020-8133) arises from incorrect passphrase generation for the encrypted block, enabling an attacker to silently overwrite blocks within a file. Public sources (Nextcloud advisory NC-SA-2020-038) describe MAC-based encryption weaknesses that can be explo...

CVE-2020-8133

A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file...

Nextcloud Server Encryption Issue Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server 18.0.4, which stems from too small a random character set being used for encryption, making decryption tim...

Nextcloud Server Authorization Issues Vulnerability (CNVD-2020-64589)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An authorization issue vulnerability exists in Nextcloud Server 19.0.1, which stems from a misconfiguration that allows users to feel that a passwordless...

CVE-2020-8183

A logic error in Nextcloud Server 19.0.0 caused a plaintext storage of the share password when it was given on the initial create API call...

CVE-2020-8183

A logic error in Nextcloud Server 19.0.0 caused a plaintext storage of the share password when it was given on the initial create API call...

CVE-2020-8173

A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended...

Nextcloud Server Elevation of Privilege Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server 19.0.0, which stems from a logic error resulting in an escalation of privileges that allows malicious user...

PT-2020-20067 · Nextcloud +1 · Nextcloud Server +1

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 19.0.1 Description: The issue is related to insufficient protection of server-side encryption keys, allowing an attacker to replace these keys. Recommendations: For Nextcloud Server version 19.0.1, update to a version...

PT-2020-20047 · Nextcloud +1 · Nextcloud Server +1

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 19.0.1 Description: The issue arises from a misconfiguration in Nextcloud Server, where the user is incorrectly led to believe that passwordless WebAuthn also serves as two-factor verification. This misconception occu...

PT-2020-20000 · Nextcloud +1 · Nextcloud Server +1

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 18.0.4 Description: A too small set of random characters being used for encryption allowed decryption in a shorter time than intended. Recommendations: For Nextcloud Server version 18.0.4, update to a version that use...

PT-2020-20008 · Nextcloud +2 · Nextcloud Server +2

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 19.0.0 Description: A logic error caused the plaintext storage of the share password when it was given on the initial create API call. Recommendations: For Nextcloud Server version 19.0.0, update to a version that fix...

CVE-2020-8223

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves...

Privilege escalation

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves...

Improper integrity protection of server-side encryption keys (NC-SA-2020-041)

Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys...

Improper confidentiality protection of server-side encryption keys (NC-SA-2020-040)

Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the public key to decrypt them later on...

Denial of Service by requesting to reset a password (NC-SA-2021-003)

A wrong check in Nextcloud Server 19 and prior allowed to perform a denial of service attack when resetting the password for a user...

Message Authentication Codes calculated by the Default Encryption Module allow an attacker to silently overwrite blocks in a file (NC-SA-2020-038)

A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file...

Downgrade encryption scheme and break integrity through known-plaintext attack (NC-SA-2020-039)

A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files...