VDB-94032 · CVE-2016-6465 · BID 94901

Cisco Email Security Appliance 8.5.7-042/9.7.2-047/10.0.0-125 TAR File input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Cisco Email Security Appliance 8.5.7-042/9.7.2-047/10.0.0-125. This issue affects some unknown processing of the component TAR File Handler. The manipulation results in input validation. This vulnerability is reported as CVE-2016-6465. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Cisco Email Security Appliance 8.5.7-042/9.7.2-047/10.0.0-125 (Anti-Malware Software). Affected is an unknown functionality of the component TAR File 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 12/07/2016. The weakness was disclosed 12/07/2016 with Cisco as cisco-sa-20161207-esa / CSCva90076 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2016-6465 since 07/26/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

The vulnerability is due to improper filtering of certain TAR format files that are attached to email messages. An attacker could exploit this vulnerability by sending an email message that has a crafted TAR file attachment through an affected device. A successful exploit could allow the attacker to bypass user filters that are configured for the device.

Upgrading 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 SecurityFocus (BID 94901†) and SecurityTracker (ID 1037404†). The entry VDB-94031 is pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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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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OpenVAS ID: 801727
OpenVAS Name: Cisco Email Security Appliance Content 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: 🔍

Timelineinfo

07/26/2016 🔍
12/07/2016 +134 days 🔍
12/07/2016 +0 days 🔍
12/07/2016 +0 days 🔍
12/07/2016 +0 days 🔍
12/08/2016 +1 days 🔍
12/10/2016 +2 days 🔍
12/13/2016 +3 days 🔍
10/05/2022 +2122 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20161207-esa / CSCva90076
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6465 (🔍)
GCVE (CVE): GCVE-0-2016-6465
GCVE (VulDB): GCVE-100-94032
SecurityFocus: 94901 - Cisco Email Security Appliance CVE-2016-6465 Remote Security Bypass Vulnerability
SecurityTracker: 1037404

See also: 🔍

Entryinfo

Created: 12/10/2016 20:00
Updated: 10/05/2022 14:08
Changes: 12/10/2016 20:00 (63), 06/23/2019 09:18 (13), 10/05/2022 14:08 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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