Improper input validation in Cisco Asyncos
CVE-2020-3568
A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. The vulnerability is due to insufficient input validation of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for the affected device, which could allow malicious URLs to pass through the device.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.010 (60.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
Affected products
- Cisco Asyncos
- Cisco Email Security Appliance (Esa) — versions n/a
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3568?
- CVE-2020-3568 is a medium-severity vulnerability in Cisco Asyncos, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2020-10-08.
- How severe is CVE-2020-3568?
- Medium severity. CVSS v3 base score is 5.8 out of 10.