Vulnerability in Openwrt
CVE-2019-5102
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (53.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Openwrt — versions OpenWrt 15.05.1, via wget (busybox), 18.06.4, 15.05.1
Weakness classification (CWE)
References
- talosintelligence.com/vulnerability_reports/TALOS-2019-0893 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-5102?
- CVE-2019-5102 is a medium-severity vulnerability in Openwrt, classified under Improper Certificate Validation. CVSS score: 4.0/10. Published 2019-11-18.
- How severe is CVE-2019-5102?
- Medium severity. CVSS v3 base score is 4.0 out of 10.