CVE-2022-39349 Tasks.org vulnerable to data exfiltration by malicous app or adb
A malicious app can force Tasks.org to copy internal files to external storage, exposing sensitive data like credentials to other apps.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-39349?
CVE-2022-39349 is a medium-severity path traversal vulnerability in tasks, published on 25 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Tasks.org Android app is an open-source app for to-do lists and reminders. The Tasks.org app uses the activity `ShareLinkActivity.kt` to handle "share" intents coming from other components in the same device and convert them to tasks. Those intents may contain arbitrary file paths as attachments, in which case the files pointed by those paths are copied in the app's external storage directory. Prior to versions 12.7.1 and 13.0.1, those paths were not validated, allowing a malicious or compromised application in the same device to force Tasks.org to copy files from its internal storage to its external storage directory, where they became accessible to any component with permission to read the external storage. This vulnerability can lead to sensitive information disclosure. All information in the user's notes and the app's preferences, including the encrypted credentials of CalDav integrations if enabled, could be accessed by third party applications installed on the same device. This issue was fixed in versions 12.7.1 and 13.0.1. There are no known workarounds.
Which versions are affected by CVE-2022-39349?
It affects 1 product.
Products include Tasks Tasks.
How do I fix CVE-2022-39349?
No fix has been published for CVE-2022-39349 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2022-39349 being exploited?
There is no known exploitation of CVE-2022-39349 in the wild and no public exploit code.
Other vulnerabilities in tasks
Sources
Also known as GHSA-8x58-cg74-8jg8.