CVE-2017-3818: cisco email_security_appliance_firmware Improper Input Validation

Vulnerability summary

CVE-2017-3818 is a medium (CVSS 5.8) Improper Input Validation vulnerability in cisco email_security_appliance_firmware. EPSS estimates a 2.24% chance of exploitation in the next 30 days, higher than 82.6% of scored vulnerabilities.

Timeline

1. 03-02-2017
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device, aka a Malformed MIME Header Filtering Bypass. This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to apply a message filter or content filter to incoming email attachments. More Information: CSCvb65245. Known Affected Releases: 9.7.1-066. Known Fixed Releases: 9.8.0-092.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.