CVE-2019-5101

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. After an SSL connection is initialized via _ustream_ssl_init, and after any data (e.g. the client's HTTP request) is written to the stream using ustream_printf, the code eventually enters the function __ustream_ssl_poll, which is used to dispatch the read/write events
References
Link Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0893 Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:openwrt:openwrt:15.05.1:*:*:*:*:*:*:*
cpe:2.3:a:openwrt:openwrt:18.06.4:*:*:*:*:*:*:*

Information

Published : 2019-11-18 06:15

Updated : 2022-06-21 07:22


NVD link : CVE-2019-5101

Mitre link : CVE-2019-5101

Products Affected
No products.
CWE
CWE-295

Improper Certificate Validation