CVE-2007-4430

Cisco IOS 12.3 - Show IP BGP Regexp Remote Denial of Service

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.

Una vulnerabilidad no especificada en Cisco IOS versiones 12.0 hasta 12.4, permite a atacantes dependiendo del contexto causar una denegación de servicio (reinicio del dispositivo y reconstrucción de la tabla de enrutamiento BGP) por medio de ciertas expresiones regulares en un comando "show ip bgp regexp". NOTA: los ataques remotos no autenticados son posibles en entornos con acceso anónimo a telnet y Looking Glass.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2007-08-17 First Exploit
2007-08-20 CVE Reserved
2007-08-20 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (10)

URL	Tag	Source
http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=WAN%2C%20Routing%20and%20Switching&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddf7bc9	X_refsource_misc
http://www.heise-security.co.uk/news/94526	X_refsource_misc
http://www.securityfocus.com/bid/25352	Vdb Entry
http://www.securitytracker.com/id?1018685	Vdb Entry
https://puck.nether.net/pipermail/cisco-nsp/2007-August/043002.html	Mailing List
https://puck.nether.net/pipermail/cisco-nsp/2007-August/043010.html	Mailing List

URL	Date	SRC
https://www.exploit-db.com/exploits/30506	2007-08-17

URL	Date	SRC

URL	Date	SRC
http://secunia.com/advisories/26798	2011-05-18
http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html	2011-05-18
http://www.vupen.com/english/advisories/2007/3136	2011-05-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Cli Search vendor "Cisco" for product "Cli"				*		-		Affected
Cisco Search vendor "Cisco"		Cbos Search vendor "Cisco" for product "Cbos"				*		-		Affected
Cisco Search vendor "Cisco"		Cbos Search vendor "Cisco" for product "Cbos"				12.1 Search vendor "Cisco" for product "Cbos" and version "12.1"		-		Affected
Cisco Search vendor "Cisco"		Cbos Search vendor "Cisco" for product "Cbos"				12.2 Search vendor "Cisco" for product "Cbos" and version "12.2"		-		Affected
Cisco Search vendor "Cisco"		Ids Search vendor "Cisco" for product "Ids"				*		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				10.0 Search vendor "Cisco" for product "Ios" and version "10.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				10.3 Search vendor "Cisco" for product "Ios" and version "10.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				11.0 Search vendor "Cisco" for product "Ios" and version "11.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				11.1 Search vendor "Cisco" for product "Ios" and version "11.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				11.2 Search vendor "Cisco" for product "Ios" and version "11.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.0 Search vendor "Cisco" for product "Ios" and version "12.0"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.1 Search vendor "Cisco" for product "Ios" and version "12.1"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.2 Search vendor "Cisco" for product "Ios" and version "12.2"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.3 Search vendor "Cisco" for product "Ios" and version "12.3"		-		Affected
Cisco Search vendor "Cisco"		Ios Search vendor "Cisco" for product "Ios"				12.4 Search vendor "Cisco" for product "Ios" and version "12.4"		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				*		-		Affected
Cisco Search vendor "Cisco"		Ios Xr Search vendor "Cisco" for product "Ios Xr"				2.0 Search vendor "Cisco" for product "Ios Xr" and version "2.0"		-		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"				3.1 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"				3.2 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"				3.3 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