CVE-2018-0447 is a vulnerability in Cisco Email Security Appliance
Published on October 5, 2018
Cisco Email Security Appliance URL Filtering Bypass Vulnerability
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.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2018-0447 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2018-0447
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Affected Versions
Cisco Email Security Appliance (ESA) Version n/a is affected by CVE-2018-0447Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.