CVE-2019-1844: Cisco Email Security Appliance Filter Bypass Vulnerability
First published: Wed May 01 2019(Updated: )
A vulnerability in certain attachment detection mechanisms of the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the filtering functionality of an affected device. The vulnerability is due to improper detection of certain content sent to an affected device. An attacker could exploit this vulnerability by sending certain file types without Content-Disposition information to an affected device. A successful exploit could allow an attacker to send messages that contain malicious content to users.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Email Security Appliance | =11.1.0-131 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-1844?
The severity of CVE-2019-1844 is medium, with a severity value of 5.3.
How does CVE-2019-1844 affect the Cisco Email Security Appliance (ESA)?
CVE-2019-1844 allows an unauthenticated, remote attacker to bypass the filtering functionality of the Cisco ESA.
What is the affected version of the Cisco Email Security Appliance (ESA)?
The affected version of the Cisco ESA is 11.1.0-131.
How can an attacker exploit CVE-2019-1844?
An attacker can exploit CVE-2019-1844 by sending certain content to the affected device, bypassing the attachment detection mechanisms.
How can I fix CVE-2019-1844?
To fix CVE-2019-1844, Cisco recommends upgrading to a fixed software release.
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