Improper input validation in Cisco Asyncos
CVE-2019-1886
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (71.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Cisco Asyncos
- Cisco Web Security Appliance (Wsa) — versions unspecified
- Cisco Web Security Appliance — versions 10.5.2-072, 10.5.3-025, 11.7.0-fcs-334
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/109049 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1886?
- CVE-2019-1886 is a high-severity vulnerability in Cisco Asyncos, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2019-07-04.
- How severe is CVE-2019-1886?
- High severity. CVSS v3 base score is 8.6 out of 10.