CVE-2020-15258: Input Validation
First published: Fri Oct 16 2020(Updated: )
In Wire before 3.20.x, `shell.openExternal` was used without checking the URL. This vulnerability allows an attacker to execute code on the victims machine by sending messages containing links with arbitrary protocols. The victim has to interact with the link and sees the URL that is opened. The issue was patched by implementing a helper function which checks if the URL's protocol is common. If it is common, the URL will be opened externally. If not, the URL will not be opened and a warning appears for the user informing them that a probably insecure URL was blocked from being executed. The issue is patched in Wire 3.20.x. More technical details about exploitation are available in the linked advisory.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wire Wire | <3.20.2934 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2020-15258.
What is the severity of CVE-2020-15258?
The severity of CVE-2020-15258 is high.
What is the affected software by CVE-2020-15258?
The affected software is Wire desktop version up to 3.20.2934.
How can an attacker exploit CVE-2020-15258?
An attacker can exploit CVE-2020-15258 by sending messages containing links with arbitrary protocols and tricking the victim into interacting with the link.
How can I fix CVE-2020-15258?
To fix CVE-2020-15258, update Wire desktop to version 3.20.2935 or higher.
- collector/nvd-index
- vendor/wire
- canonical/wire wire