Improper input validation in Cisco Email Security Appliance (Esa)
CVE-2019-1905
A vulnerability in the GZIP decompression engine 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 validation of GZIP-formatted files. An attacker could exploit this vulnerability by sending a malicious file inside a crafted GZIP-compressed file. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.014 (71.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: +0.000
Affected products
- Cisco Email Security Appliance (Esa) — versions 12.0
- Cisco Email Security Appliance — versions 11.1.2, 12.0.0
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/108856 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1905?
- CVE-2019-1905 is a medium-severity vulnerability in Cisco Email Security Appliance (Esa), classified under Improper Input Validation. CVSS score: 5.8/10. Published 2019-06-20.
- How severe is CVE-2019-1905?
- Medium severity. CVSS v3 base score is 5.8 out of 10.