CVE-2019-1886
Last modified
CVE-2019-1886 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Secure Sockets Layer (SSL) server certificates. EPSS estimates a 1.35% chance of exploitation in the next 30 days.
Description
A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Secure Sockets Layer (SSL) server certificates. An attacker could exploit this vulnerability by installing a malformed certificate in a web server and sending a request to it through the Cisco WSA. A successful exploit could allow the attacker to cause an unexpected restart of the proxy process on an affected device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Asyncos | >= 10.5, < 10.5.5-005 |
| Cisco | Asyncos | >= 11.5, < 11.5.2-020 |
| Cisco | Web Security Appliance | 10.5.2-072 |
| Cisco | Web Security Appliance | 10.5.3-025 |
| Cisco | Web Security Appliance | 11.7.0-fcs-334 |
References
- http://www.securityfocus.com/bid/109049Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/109049Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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