CVE-2019-5102
First published: Mon Nov 18 2019(Updated: )
An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenWrt OpenWrt | =15.05.1 | |
| OpenWrt OpenWrt | =18.06.4 |
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Frequently Asked Questions
What is CVE-2019-5102?
CVE-2019-5102 is an exploitable information leak vulnerability in the ustream-ssl library of OpenWrt versions 18.06.4 and 15.05.1.
What is the severity of CVE-2019-5102?
The severity of CVE-2019-5102 is medium with a severity value of 5.9.
How does CVE-2019-5102 affect OpenWrt?
CVE-2019-5102 affects OpenWrt versions 18.06.4 and 15.05.1.
How can an attacker exploit CVE-2019-5102?
An attacker can exploit CVE-2019-5102 by exploiting the behavior of OpenWrt where the server's SSL certificate is checked but no action is taken when the certificate is invalid.
Is there a fix for CVE-2019-5102?
Yes, to fix CVE-2019-5102, users should update their OpenWrt installations to the latest available version.
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