#android

Categories: News The most important and interesting computer security stories from the last week. (Read more...) The post A week in security (September 26 – October 2) appeared first on Malwarebytes Labs.

People around the world are rallying to subvert Iran's internet shutdown, but actually pulling it off is proving difficult and risky.

Joplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file, via Joplin. This is possible because the application does not properly validate the schema/protocol of existing links in the markdown file before passing them to the 'shell.openExternal' function.

By Owais Sultan Due to its many benefits, mobile commerce has been growing quickly over the last several years. The need… This is a post from HackRead.com Read the original post: Top 5 Mobile Commerce Trends in 2022

Multiple cross-site scripting (XSS) vulnerabilities in Canon Medical Vitrea View 7.x before 7.7.6 allow remote attackers to inject arbitrary web script or HTML via (1) the input after the error subdirectory to the /vitrea-view/error/ subdirectory, or the (2) groupID, (3) offset, or (4) limit parameter to an Administrative Panel (Group and Users) page. There is a risk of an attacker retrieving patient information.

Plus: WhatsApp plugs holes that could be used for remote execution attacks, Microsoft patches a zero-day vulnerability, and more.

### Impact An attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a sophisticated attacker cooperating with a malicious homeserver could employ this vulnerability to perform a targeted attack in order to send fake to-device messages appearing to originate from another user. This can allow, for example, to inject the key backup secret during a self-verification, to make a targeted device start using a malicious key backup spoofed by the homeserver. matrix-android-sdk2 would then additionally sign such a key backup with its device key, spilling trust over to other devices trusting the matrix-android-sdk2 device. These attacks are possible due to a protocol confusion vulnerability that accepts to-device messages encrypted with Megolm instead of Olm. ### Patches matrix-android-sdk2 has been modified to only accept Olm-encrypted to-device messages a...

### Impact An attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others. This attack is possible due to the matrix-android-sdk2 implementing a too permissive [key forwarding](https://spec.matrix.org/v1.3/client-server-api/#key-requests) strategy on the receiving end. Key forwarding is a mechanism allowing clients to recover from “unable to decrypt” messages when they missed the initial key distribution, at the time the message was originally sent. Examples include accessing message history before they joined the room but also when some network/federation errors have occurred. ### Patches The default policy for accepting key forwards has been made more strict in the matrix-android-sdk2. The matrix-android-sdk2 will now only accept forwarded keys in response to previously issued requests and only from own, verified devices. A ...

By Waqas Hackers are actively using encrypted chat apps like Signal and Telegram to share stolen data belonging to the Iranian government, tutorials on how to hack, and use VPNs and Tor to bypass censorship. This is a post from HackRead.com Read the original post: Hackers turn to Signal, Telegram and Dark Web to assist Iranian protestors

The messenger protocol had gained popularity for its robust security, but vulnerabilities allowed attackers to decrypt messages and impersonate users.