Cisco Firewall Services Module 4.1(5) SSH Session denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco Firewall Services Module 4.1(5). This vulnerability affects unknown code of the component SSH Session Handler. The manipulation leads to denial of service. This vulnerability is traded as CVE-2013-1193. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Firewall Services Module 4.1(5) (Firewall Software) and classified as problematic. This issue affects an unknown functionality of the component SSH Session Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in Cisco Firewall Services Module (FWSM), does not properly terminate sessions, which allows remote attackers to cause a denial of service (SSH service outage) by repeatedly establishing SSH connections, aka Bug IDs CSCue63881, CSCuf51892, CSCue78671, and CSCug26937.

The weakness was shared 04/12/2013 with Cisco as CVE-2013-1193 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2013-1193 since 01/11/2013. 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.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at sso.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (83391), SecurityFocus (BID 59043†), OSVDB (92277†), Secunia (SA52989†) and Vulnerability Center (SBV-39537†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Firewall Services Module 4.1(5)
  • Adaptive Security Appliance 8.4(4.1)

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: sso.cisco.com

Timelineinfo

01/11/2013 🔍
04/12/2013 +91 days 🔍
04/12/2013 +0 days 🔍
04/12/2013 +0 days 🔍
04/12/2013 +0 days 🔍
04/12/2013 +0 days 🔍
04/16/2013 +4 days 🔍
04/17/2013 +1 days 🔍
05/13/2013 +26 days 🔍
04/29/2017 +1447 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CVE-2013-1193
Organization: Cisco
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-1193 (🔍)
GCVE (CVE): GCVE-0-2013-1193
GCVE (VulDB): GCVE-100-8429
X-Force: 83391
SecurityFocus: 59043 - Multiple Cisco Products CVE-2013-1193 Denial of Service Vulnerability
Secunia: 52989 - Cisco ASA Software SSH Denial of Service Vulnerability, Less Critical
OSVDB: 92277
Vulnerability Center: 39537 - Cisco ASA and FWSM Remote Denial of Service via Repeatedly Established SSH Connections, Medium

Entryinfo

Created: 04/17/2013 18:19
Updated: 04/29/2017 20:46
Changes: 04/17/2013 18:19 (69), 04/29/2017 20:46 (4)
Complete: 🔍
Committer:
Cache ID: 216:7AB:103

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