CVE-2019-1844 Cisco Email Security Appliance Filter Bypass Vulnerability

What is CVE-2019-1844?

CVE-2019-1844 is a medium-severity vulnerability in Cisco Email Security Appliance, published on 3 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-20

Which versions are affected by CVE-2019-1844?

It affects 1 product.

Products include Cisco Email Security Appliance.

How do I fix CVE-2019-1844?

No fix has been published for CVE-2019-1844 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1844 being exploited?

There is no known exploitation of CVE-2019-1844 in the wild and no public exploit code.

Other vulnerabilities in Cisco Email Security Appliance

• CVE-2022-20798 Cisco Email Security Appliance and Cisco Secure Email and Web Manager External Authentication Bypass Vulnerability Critical 9.8
• CVE-2015-6291 Denial of service in n/a High 7.8
• CVE-2022-20664 Cisco Email Security Appliance and Cisco Secure Email and Web Manager Information Disclosure Vulnerability High 7.7
• CVE-2022-20960 Denial of service in Cisco Secure Email High 7.5
• CVE-2018-0419 Security feature bypass in Email Security Appliance (ESA) High 7.5

All Cisco Email Security Appliance vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-gpfw-gg76-25px.