WhatsApp introduces new security features

WhatsApp has announced several new security features which include an extra check when an account is transferred to a new device. This check asks that users confirm the transfer on their old device. This should warn users in case there is a transfer in progress started by somebody trying to hijac...

WhatsApp Introduces New Device Verification Feature to Prevent Account Takeover Attacks

Popular instant messaging app WhatsApp on Thursday announced a new account verification feature that ensures that malware running on a user's mobile device doesn't impact their account. "Mobile device malware is one of the biggest threats to people's privacy and security today because it can take...

DEBIAN-CVE-2023-28999

Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files,...

CVE-2023-28997

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can recover and modify the contents of end-to-end encrypted files. Users should upgrade the Nextcloud Desktop client to 3.6.5...

CVE-2023-28999

Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files,...

Code injection

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new...

CVE-2023-29000 Nextcloud Desktop client does not verify received singed certificate in end-to-end encryption

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt file...

CVE-2023-29000 Nextcloud Desktop client does not verify received singed certificate in end-to-end encryption

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt file...

CVE-2023-28999 Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders

Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files,...

CVE-2023-28999 Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders

Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files,...

CVE-2023-28998 Nextcloud Desktop client misbehaves with E2EE when the server returns empty list of metadata keys

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new...

CVE-2023-28997 Nextcloud Desktop: Initialization vector reuse in E2EE allows malicious server admin to break, manipulate, access files

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can recover and modify the contents of end-to-end encrypted files. Users should upgrade the Nextcloud Desktop client to 3.6.5...

Initialization vector reuse in end-to-end encryption allows a malicious server admin to break manipulate and access files

None...

Desktop client does not verify received singed certificate in end-to-end encryption

None...

PT-2023-22074 · Nextcloud +2 · Nextcloud Desktop Client +2

Name of the Vulnerable Software and Affected Versions: Nextcloud Desktop Client versions 3.0.0 through 3.6.4 Description: A malicious server administrator can gain full access to an end-to-end encrypted folder, allowing them to decrypt files, recover the folder structure, and add new files...

Nextcloud 安全漏洞

Nextcloud is an open source suite of self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud that originates from allowing a malicious server to gain access to E2EE folders. Affected products and version...

Nextcloud: End-to-end encrypted file-drops can be made inaccessible

An end-to-end encrypted file-drop vulnerability allowed attackers to modify the metadata file and make the uploaded file inaccessible. The vulnerability could break the availability of the file. The issue was resolved by not providing the metadata file to the user and appending the new entry in t...

WhatsApp refuses to weaken encryption, would rather leave UK

WhatsApp will not comply with the UK's Online Safety Bill when it passes legislation as is. In fact, WhatsApp would rather cease serving UK users, which make up 2% of its global market, than weaken its end-to-end encryption E2EE. Will Cathcart, head of WhatsApp at parent company Meta, made these...

CVE-2023-23911

An improper access control vulnerability exists prior to v6 that could allow an attacker to break the E2E encryption of a chat room by a user changing the group key of a chat room...

PT-2023-19295 · Softwarex · Softwarex

Name of the Vulnerable Software and Affected Versions: SoftwareX versions prior to v6 Description: An improper access control issue exists that could allow an attacker to break the E2E encryption of a chat room by a user changing the group key of a chat room. Recommendations: For versions prior t...