CVE-2023-22473 Passcode bypass on Talk-Android app
An attacker with physical access can bypass the passcode to view Nextcloud files and conversations in the Talk Android app.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-22473?
CVE-2023-22473 is a low-severity authentication bypass vulnerability in nextcloud security-advisories, published on 9 Jan 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Talk-Android enables users to have video & audio calls through Nextcloud on Android. Due to passcode bypass, an attacker is able to access the user's Nextcloud files and view conversations. To exploit this the attacker needs to have physical access to the target's device. There are currently no known workarounds available. It is recommended that the Nextcloud Talk Android app is upgraded to 15.0.2.
Weakness: CWE-284
Which versions are affected by CVE-2023-22473?
It affects 1 product.
Products include Nextcloud Talk.
How do I fix CVE-2023-22473?
No fix has been published for CVE-2023-22473 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-22473 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-22473 exists.
Other vulnerabilities in nextcloud security-advisories
- CVE-2020-8180 Code injection in Nextcloud Talk
- CVE-2021-32689 Nextcloud Talk not properly disassociating users from chats after account deletion
- CVE-2023-39957 Path traversal allows tricking the Talk Android app into writing files into it's root directory
- CVE-2021-32676 Session Fixation in Nextcloud Talk
- CVE-2021-39222 XSS in Talk
Sources
Also known as GHSA-wvr4-gc4c-6vmx.