Cisco Email Security Appliance prior 9.8.1-015/10.0.2-020 MIME Header input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Cisco Email Security Appliance. Affected is an unknown function of the component MIME Header Handler. The manipulation results in input validation. This vulnerability is identified as CVE-2017-6671. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco Email Security Appliance (Anti-Malware Software). It has been classified as critical. Affected is an unknown code block of the component MIME Header Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 06/07/2017. The weakness was released 06/07/2017 with Cisco as cisco-sa-20170607-esa1 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2017-6671 since 03/09/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 101264 (Cisco AsyncOS for Email Security Appliance Attachment MIME Header Handling Filter Bypass (cisco-sa-20170607-esa1)), 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 c.

Upgrading to version 9.8.1-015 or 10.0.2-020 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101264), SecurityFocus (BID 98969†) and SecurityTracker (ID 1038635†). Entry connected to this vulnerability is available at VDB-102157. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Cisco): 5.8
Vendor Vector (Cisco): 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 101264
Nessus Name: Cisco AsyncOS for Email Security Appliance Attachment MIME Header Handling Filter Bypass (cisco-sa-20170607-esa1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco Email Security Appliance Attachment Filter Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Email Security Appliance 9.8.1-015/10.0.2-020

Timelineinfo

03/09/2017 🔍
06/07/2017 +90 days 🔍
06/07/2017 +0 days 🔍
06/07/2017 +0 days 🔍
06/07/2017 +0 days 🔍
06/08/2017 +1 days 🔍
06/09/2017 +1 days 🔍
06/13/2017 +4 days 🔍
07/06/2017 +23 days 🔍
12/26/2020 +1269 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170607-esa1
Researcher: Cisco
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6671 (🔍)
GCVE (CVE): GCVE-0-2017-6671
GCVE (VulDB): GCVE-100-102156
SecurityFocus: 98969 - Cisco AsyncOS Software CVE-2017-6671 Remote Security Bypass Vulnerability
SecurityTracker: 1038635

See also: 🔍

Entryinfo

Created: 06/09/2017 09:26
Updated: 12/26/2020 17:16
Changes: 06/09/2017 09:26 (84), 10/15/2019 16:06 (7), 12/26/2020 17:13 (2), 12/26/2020 17:16 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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