CVE-2019-1905
Medium
Description
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.
SeverityMedium
CVSS5.8
Exploit probability—
Product
Cisco Email Security Appliance
PublishedJun 20, 2019
First seenJun 20, 2019
Weakness typeCWE-20Improper input validation
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco email_security_appliance | 11.1.2, 12.0.0 | — |
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