PT-2016-6840 · Cisco · Cisco Asyncos

Published 2016-10-28 · Updated 2017-07-29 · CVE-2016-6356

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco AsyncOS Software for Cisco Email Security Appliances versions prior to 9.1.1-038 Cisco AsyncOS Software for Cisco Email Security Appliances versions prior to 9.7.2-047 Cisco AsyncOS Software for Cisco Email Security Appliances versions 8.5.7-042 Cisco AsyncOS Software for Cisco Email Security Appliances versions 9.7.0-125

Description A vulnerability in the email message filtering feature could allow an unauthenticated, remote attacker to cause an affected device to stop scanning and forwarding email messages due to a denial of service (DoS) condition. This issue affects devices configured to apply a message filter or content filter to incoming email attachments, and it is not limited to any specific rules or actions for a message filter or content filter.

Recommendations For versions 8.5.7-042, update to version 9.1.1-038 or later. For versions 9.7.0-125, update to version 9.7.2-047 or later. As a temporary workaround, consider disabling the message filter or content filter feature for incoming email attachments until a patch is available.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2016-6356

Affected Products

Cisco Asyncos

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2016-6356 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esa3 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-6356 · Vendor Advisory
• http://securitytracker.com/id/1037122 · Note
• http://securityfocus.com/bid/93907 · Note