Cisco Mail Security Appliance up to 8.1 Web Framework TCP Connection Request resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco Mail Security Appliance 7.2/7.7/7.8/8.0/8.1. It has been rated as problematic. This affects an unknown part of the component Web Framework. The manipulation as part of TCP Connection Request leads to resource management. This vulnerability is referenced as CVE-2013-3386. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco Mail Security Appliance 7.2/7.7/7.8/8.0/8.1 and classified as critical. This issue affects an unknown function of the component Web Framework. The manipulation as part of a TCP Connection Request leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

The IronPort Spam Quarantine (ISQ) component in the web framework in IronPort AsyncOS on Cisco Email Security Appliance devices before 7.1.5-106 and 7.3, 7.5, and 7.6 before 7.6.3-019 and Content Security Management Appliance devices before 7.9.1-102 and 8.0 before 8.0.0-404 allows remote attackers to cause a denial of service (service crash or hang) via a high rate of TCP connection attempts, aka Bug IDs CSCzv25573 and CSCzv81712.

The weakness was published 06/26/2013 as cisco-sa-20130626-esa as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2013-3386 since 05/06/2013. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The advisory points out:

This vulnerability can be triggered by IPv4 and IPv6 traffic directed to ISQ enabled interfaces of the affected system.

The vulnerability scanner Nessus provides a plugin with the ID 69076 (Multiple Vulnerabilities in Cisco Email Security Appliance (cisco-sa-20130626-esa)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43414 (Multiple Vulnerabilities in Cisco IronPort AsyncOS Software (cisco-sa-20130626)). The advisory illustrates:

This vulnerability can be exploited over the default ISQ ports, TCP port 82 or TCP port 83.

Upgrading to version 7.1.5-016, 7.6.3-019 or 8.0.0-671 eliminates this vulnerability.Addressing this vulnerability is possible by firewalling tcp/82-83 (ISQ). The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A hard reboot of the affected system is needed to restore full functionality. (…) The IronPort Spam Quarantine Denial of Service Vulnerability can be mitigated by disabling the end-user access to the ISQ service. Administrators can disable this access using the interfaceconfig command. Alternatively, this can be done via the GUI by editing the settings for Spam Quarantine under Monitor->Quarantines-> Edit and then unchecking the option "Enable End-User Quarantine Access".

The vulnerability is also documented in the databases at Tenable (69076), OSVDB (94604†), Secunia (SA53957†) and Vulnerability Center (SBV-40227†). computerworld.com is providing further details. Similar entries are available at VDB-9274, VDB-9276 and VDB-9279. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 69076
Nessus Name: Multiple Vulnerabilities in Cisco Email Security Appliance (cisco-sa-20130626-esa)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Mail Security Appliance 7.1.5-016/7.6.3-019/8.0.0-671
Firewalling: 🔍

Timelineinfo

05/06/2013 🔍
06/26/2013 +51 days 🔍
06/26/2013 +0 days 🔍
06/26/2013 +0 days 🔍
06/27/2013 +1 days 🔍
06/27/2013 +0 days 🔍
06/30/2013 +3 days 🔍
05/17/2021 +2878 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20130626-esa
Status: Confirmed

CVE: CVE-2013-3386 (🔍)
GCVE (CVE): GCVE-0-2013-3386
GCVE (VulDB): GCVE-100-9275

IAVM: 🔍

Secunia: 53957 - Cisco Appliances Multiple Vulnerabilities, Less Critical
OSVDB: 94604
Vulnerability Center: 40227 - [cisco-sa-20130626-esa, cisco-sa-20130626-sma, cisco-sa-20130626-wsa] Cisco IronPort AsyncOS Remote Denial of Service (CVE-2013-3386), High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 06/27/2013 11:52
Updated: 05/17/2021 11:53
Changes: 06/27/2013 11:52 (51), 05/04/2017 10:23 (27), 05/17/2021 11:53 (3)
Complete: 🔍
Cache ID: 216::103

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