Cisco Email Security Appliance prior 9.7.1-066/9.9.6-026/10.0.9-015 Security Policy 7pk error

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Cisco Email Security Appliance. Affected by this vulnerability is an unknown functionality of the component Security Policy. The manipulation leads to 7pk error. This vulnerability is uniquely identified as CVE-2016-6357. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Email Security Appliance (Anti-Malware Software) and classified as critical. This issue affects some unknown functionality of the component Security Policy. The manipulation with an unknown input leads to a 7pk error vulnerability. Using CWE to declare the problem leads to CWE-388. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the configured security policies, including drop email filtering, in Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass a configured drop filter by using an email with a corrupted attachment. More Information: CSCuz01651. Known Affected Releases: 10.0.9-015 9.7.1-066 9.9.6-026.

The weakness was disclosed 10/28/2016 with Cisco as CSCuz01651 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2016-6357 since 07/26/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 316061 (Cisco Email Security Appliance Drop Bypass Vulnerability (cisco-sa-20161026-esa5)).

Upgrading to version 9.7.1-066, 9.9.6-026 or 10.0.9-015 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93909†). The entries VDB-93139, VDB-93138 and VDB-93136 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 7pk error
CWE: CWE-388
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: 103403
OpenVAS Name: Cisco Email Security Appliance Drop Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Email Security Appliance 9.7.1-066/9.9.6-026/10.0.9-015

Timelineinfo

07/26/2016 🔍
10/26/2016 +92 days 🔍
10/28/2016 +2 days 🔍
10/28/2016 +0 days 🔍
10/28/2016 +0 days 🔍
09/25/2024 +2889 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuz01651
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6357 (🔍)
GCVE (CVE): GCVE-0-2016-6357
GCVE (VulDB): GCVE-100-93137
SecurityFocus: 93909 - Cisco AsyncOS CVE-2016-6357 Remote Security Bypass Vulnerability
SecurityTracker: 1037114

See also: 🔍

Entryinfo

Created: 10/28/2016 19:46
Updated: 09/25/2024 06:44
Changes: 10/28/2016 19:46 (57), 05/19/2019 18:34 (13), 09/28/2022 15:25 (3), 09/25/2024 06:44 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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