Improper input validation in Cisco Email Security Appliance (Esa)
CVE-2019-1921
A vulnerability in the attachment scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper input validation of the email body. An attacker could exploit this vulnerability by naming a malicious attachment with a specific pattern. A successful exploit could allow the attacker to bypass configured content filters that would normally block the attachment.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.014 (70.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
Affected products
- Cisco Email Security Appliance (Esa) — versions 12.0.0-419
- Cisco Email_security_appliance — versions 12.0.0-419
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1921?
- CVE-2019-1921 is a medium-severity vulnerability in Cisco Email Security Appliance (Esa), classified under Improper Input Validation. CVSS score: 5.8/10. Published 2019-07-06.
- How severe is CVE-2019-1921?
- Medium severity. CVSS v3 base score is 5.8 out of 10.