National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-5101 Detail

Current Description

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

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.9 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0893 Exploit Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-295 Improper Certificate Validation NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:openwrt:openwrt:15.05.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openwrt:openwrt:18.06.4:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-5101
NVD Published Date:
11/18/2019
NVD Last Modified:
11/20/2019