Cisco IOS XR up to 3.6.1 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 classified as problematic has been found in Cisco IOS XR up to 3.6.1. This impacts an unknown function. The manipulation leads to resource management. This vulnerability is traded as CVE-2011-0949. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS XR up to 3.6.1 (Router Operating System). This issue affects some unknown processing. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Cisco IOS XR 3.6.x, 3.8.x before 3.8.3, and 3.9.x before 3.9.1 does not properly remove sshd_lock files from /tmp/, which allows remote attackers to cause a denial of service (disk consumption) by making many SSHv1 connections, aka Bug ID CSCtd64417.

The weakness was shared 05/31/2011 with Cisco (Website). It is possible to read the advisory at cisco.com. The identification of this vulnerability is CVE-2011-0949 since 02/10/2011. The exploitation is known to be easy. 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.

Upgrading to version 3.6.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (67644), SecurityFocus (BID 47982†) and Vulnerability Center (SBV-31580†). The entry VDB-57538 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: IOS XR 3.6.2

Timelineinfo

02/10/2011 🔍
05/25/2011 +104 days 🔍
05/25/2011 +0 days 🔍
05/29/2011 +4 days 🔍
05/31/2011 +2 days 🔍
05/31/2011 +0 days 🔍
03/23/2015 +1392 days 🔍
03/23/2017 +731 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Organization: Cisco
Status: Not defined

CVE: CVE-2011-0949 (🔍)
GCVE (CVE): GCVE-0-2011-0949
GCVE (VulDB): GCVE-100-57539
X-Force: 67644
SecurityFocus: 47982 - Cisco IOS XR SSHv1 '/tmp/ssh_lock' Remote Denial of Service Vulnerability
Vulnerability Center: 31580 - [cisco-sa-20110525-iosxr-ssh] Cisco IOS XR SSHv1 Remote Denial of Service Vulnerability, High

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 03/23/2017 07:36
Changes: 03/23/2015 16:50 (51), 03/23/2017 07:36 (10)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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