CVE-2009-2056

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Cisco IOS XR 3.8.1 y versiones anteriores permite a atacantes remotos autenticados provocar una denegación de servicio (caida de proceso) mediante vectores relacionados con un mensaje BGP UPDATE con muchos números AS al comienzo de la ruta AS.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Multiple

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-06-12 CVE Reserved
2009-08-21 CVE Published
2024-09-17 CVE Updated
2024-09-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (2)

URL	Tag	Source
http://securitytracker.com/id?1022756	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml	2009-08-21

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				<= 3.8.1 Search vendor "Cisco" for product "Ios Xr" and version " <= 3.8.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.0 Search vendor "Cisco" for product "Ios Xr" and version "3.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.0.1 Search vendor "Cisco" for product "Ios Xr" and version "3.0.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.1 Search vendor "Cisco" for product "Ios Xr" and version "3.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.1.0 Search vendor "Cisco" for product "Ios Xr" and version "3.1.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.2 Search vendor "Cisco" for product "Ios Xr" and version "3.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.2.1 Search vendor "Cisco" for product "Ios Xr" and version "3.2.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.2.2 Search vendor "Cisco" for product "Ios Xr" and version "3.2.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.2.3 Search vendor "Cisco" for product "Ios Xr" and version "3.2.3"		crs-1		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.2.3 Search vendor "Cisco" for product "Ios Xr" and version "3.2.3"		prp		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.2.4 Search vendor "Cisco" for product "Ios Xr" and version "3.2.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.2.50 Search vendor "Cisco" for product "Ios Xr" and version "3.2.50"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.3 Search vendor "Cisco" for product "Ios Xr" and version "3.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.4 Search vendor "Cisco" for product "Ios Xr" and version "3.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.4.0 Search vendor "Cisco" for product "Ios Xr" and version "3.4.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.4.1 Search vendor "Cisco" for product "Ios Xr" and version "3.4.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.4.2 Search vendor "Cisco" for product "Ios Xr" and version "3.4.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.4.3 Search vendor "Cisco" for product "Ios Xr" and version "3.4.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.5 Search vendor "Cisco" for product "Ios Xr" and version "3.5"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.5.2 Search vendor "Cisco" for product "Ios Xr" and version "3.5.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.5.3 Search vendor "Cisco" for product "Ios Xr" and version "3.5.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.5.4 Search vendor "Cisco" for product "Ios Xr" and version "3.5.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.6 Search vendor "Cisco" for product "Ios Xr" and version "3.6"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.6.0 Search vendor "Cisco" for product "Ios Xr" and version "3.6.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.6.1 Search vendor "Cisco" for product "Ios Xr" and version "3.6.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.6.2 Search vendor "Cisco" for product "Ios Xr" and version "3.6.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.6.3 Search vendor "Cisco" for product "Ios Xr" and version "3.6.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.7 Search vendor "Cisco" for product "Ios Xr" and version "3.7"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.7.0 Search vendor "Cisco" for product "Ios Xr" and version "3.7.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.7.1 Search vendor "Cisco" for product "Ios Xr" and version "3.7.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.7.2 Search vendor "Cisco" for product "Ios Xr" and version "3.7.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.7.3 Search vendor "Cisco" for product "Ios Xr" and version "3.7.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				3.8.0 Search vendor "Cisco" for product "Ios Xr" and version "3.8.0"		-		Affected