A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software for the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass certain content filters on an affected device. The vulnerability is due to incomplete input and validation checking mechanisms for certain Sender Policy Framework (SPF) messages that are sent to an affected device. An attacker could exploit this vulnerability by sending a customized SPF packet to an affected device. If successful, an exploit could allow the attacker to bypass the URL filters that are configured for the affected device, which could allow malicious URLs to pass through the device.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2018-10-05T14:00:00Z
Updated: 2024-09-17T04:08:46.703Z
Reserved: 2017-11-27T00:00:00
Link: CVE-2018-0447
Vulnrichment
No data.
NVD
Status : Modified
Published: 2018-10-05T14:29:02.810
Modified: 2019-10-09T23:32:06.333
Link: CVE-2018-0447
Redhat
No data.