CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco IOS 12.x. This issue affects some unknown processing of the component SSH2 Session Handler. The manipulation results in resource management. This vulnerability is cataloged as CVE-2011-1624. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco IOS 12.x (Router Operating System). Affected is an unknown functionality of the component SSH2 Session Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

Cisco IOS 12.2(58)SE, when a login banner is configured, allows remote attackers to cause a denial of service (device reload) by establishing two SSH2 sessions, aka Bug ID CSCto62631.

The weakness was shared 08/23/2011 with Cisco (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2011-1624 since 04/05/2011. 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.

As 0-day the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43209 (Cisco IOS SSH2 Sessions Denial of Service Security Issue).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at tools.cisco.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (69323), SecurityFocus (BID 49282†), Secunia (SA45761†) and Vulnerability Center (SBV-32828†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS

Version

• 12.x

License

• commercial

Website

• Vendor: https://www.cisco.com/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Patch: tools.cisco.com

Timelineinfo

04/05/2011 🔍
04/05/2011 +0 days 🔍
08/18/2011 +135 days 🔍
08/23/2011 +5 days 🔍
08/23/2011 +0 days 🔍
08/23/2011 +0 days 🔍
08/24/2011 +1 days 🔍
09/16/2011 +23 days 🔍
03/30/2017 +2022 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: tools.cisco.com
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1624 (🔍)
GCVE (CVE): GCVE-0-2011-1624
GCVE (VulDB): GCVE-100-4404
X-Force: 69323
SecurityFocus: 49282 - Cisco IOS SSH2 Sessions CVE-2011-1624 Remote Denial of Service Vulnerability
Secunia: 45761 - Cisco IOS SSH2 Sessions Denial of Service Security Issue, Less Critical
Vulnerability Center: 32828 - Cisco IOS 12.2(58)SE Remote Denial of Service Vulnerability via Two SSH2 Sessions, Medium

Entryinfo

Created: 09/16/2011 02:00
Updated: 03/30/2017 09:45
Changes: 09/16/2011 02:00 (66), 03/30/2017 09:45 (9)
Complete: 🔍
Cache ID: 216:EF6:103

Discussion

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