Cisco Email Security Appliance up to 9.7.1-066/10.0.0-125/10.0.0-082 Email Filter Detection input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability was found in Cisco Email Security Appliance up to 9.7.1-066/10.0.0-125/10.0.0-082 (Anti-Malware Software). It has been declared as critical. This vulnerability affects an unknown part of the component Email Filter. The manipulation with an unknown input leads to a input validation vulnerability (Detection). The CWE definition for the vulnerability is CWE-20. The 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the email filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to bypass Advanced Malware Protection (AMP) filters that are configured for an affected device. This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for both virtual and hardware versions of Cisco Email Security Appliances, if the AMP feature is configured to scan incoming email attachments. More Information: CSCva13456. Known Affected Releases: 10.0.0-082 10.0.0-125 9.7.1-066. Known Fixed Releases: 10.0.0-203 9.7.2-131.

The bug was discovered 11/16/2016. The weakness was published 11/19/2016 with Cisco as CSCva13456 as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2016-6462 since 07/26/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 95479 (Cisco AsyncOS for Email Security Appliances MIME Header Processing Filter Bypass (cisco-sa-20161116-esa1 / cisco-sa-20161116-esa2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l.

Upgrading to version 9.7.2-131 or 10.0.0-203 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (95479). Similar entry is available at 93671.

Productinfo

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Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Detection
Class: Input validation / Detection
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 95479
Nessus Name: Cisco AsyncOS for Email Security Appliances MIME Header Processing Filter Bypass (cisco-sa-20161116-esa1 / cisco-sa-20161116-esa2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53233
OpenVAS Name: Cisco Email Security Appliance MIME Header Processing Filter Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Email Security Appliance 9.7.2-131/10.0.0-203

Timelineinfo

07/26/2016 🔍
11/16/2016 +113 days 🔍
11/16/2016 +0 days 🔍
11/16/2016 +0 days 🔍
11/18/2016 +2 days 🔍
11/19/2016 +1 days 🔍
11/19/2016 +0 days 🔍
12/02/2016 +13 days 🔍
10/04/2022 +2132 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCva13456
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6462 (🔍)
SecurityTracker: 1037307
SecurityFocus: 94360 - Cisco Email Security Appliance CVE-2016-6462 Remote Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 11/19/2016 09:02
Updated: 10/04/2022 09:12
Changes: 11/19/2016 09:02 (66), 06/03/2019 10:13 (15), 10/04/2022 09:12 (3)
Complete: 🔍

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