Cisco IOS XR up to 3.4.2 access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS XR up to 3.4.2. It has been declared as problematic. This vulnerability affects unknown code. Such manipulation leads to access control. This vulnerability is referenced as CVE-2009-2056. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Cisco IOS XR up to 3.4.2 (Router Operating System). It has been rated as problematic. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is availability. CVE summarizes:

Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service (process crash) via vectors involving a BGP UPDATE message with many AS numbers prepended to the AS path.

The weakness was published 08/21/2009 (Website). The advisory is shared for download at cisco.com. This vulnerability is handled as CVE-2009-2056 since 06/12/2009. The exploitation is known to be easy. The attack may be launched remotely. The exploitation requires an enhanced level of successful authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1022756†). Similar entries are available at VDB-49578 and VDB-49524. Once again VulDB remains the best source 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: 2.7
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
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: Access control
CWE: CWE-264
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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/12/2009 🔍
08/20/2009 +69 days 🔍
08/21/2009 +1 days 🔍
08/21/2009 +0 days 🔍
03/18/2015 +2035 days 🔍
12/16/2017 +1004 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Status: Confirmed

CVE: CVE-2009-2056 (🔍)
GCVE (CVE): GCVE-0-2009-2056
GCVE (VulDB): GCVE-100-49580
SecurityTracker: 1022756

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

Entryinfo

Created: 03/18/2015 15:15
Updated: 12/16/2017 07:24
Changes: 03/18/2015 15:15 (46), 12/16/2017 07:24 (6)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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