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VULNERABILITIES

CVE-2019-12706 Details

Description

A vulnerability in the Sender Policy Framework (SPF) functionality of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the configured user filters on an affected device. The vulnerability exists because the affected software insufficiently validates certain incoming SPF messages. An attacker could exploit this vulnerability by sending a custom SPF packet to an affected device. A successful exploit could allow the attacker to bypass the configured header filters, which could allow malicious content to pass through the device.

Metrics

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-esa-bypass CVEVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-esa-bypass [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]
CWE-20Improper Input Validation[email protected]

Affected Products

ProductVersions
cisco email security appliance firmware
< 13.5.0

CPE

  • cpe:2.3:o:cisco:email_security_appliance_firmware:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2019-12706
NVD Published Date:
Oct 2, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2019-12706 Details - Not Deferred