Details of VAR-201309-0036

ID

VAR-201309-0036

CVE

CVE-2013-1121

TITLE

Cisco NX-OS of BGP Implementation of regex Service disruption in engines (DoS) Vulnerabilities

Trust: 0.8

sources: JVNDB: JVNDB-2013-004264

DESCRIPTION

The regex engine in the BGP implementation in Cisco NX-OS, when a complex regular expression is configured for inbound routes, allows remote attackers to cause a denial of service (device reload) via a crafted AS path set, aka Bug ID CSCuf49554. ( Device reload ) There are vulnerabilities that are put into a state. Cisco NX-OS software is a data center-level operating system that reflects modular design, resiliency, and maintainability. A BGP code implementation in Cisco NX-OS Software has a security vulnerability that allows unauthenticated remote attackers to overload affected devices. The vulnerability can be triggered if the affected device has a complex regular expression applied to the inbound route, and the vulnerability can be successfully triggered to trigger a Cisco NX-OS Software reboot. Cisco NX-OS is prone to a denial-of-service vulnerability. An attacker can exploit this issue to cause the affected device to reload, denying service to legitimate users. This issue is being tracked by Cisco bug ID CSCuf49554. Cisco NX-OS is a data center-oriented operating system developed by Cisco. The vulnerability stems from an error in the regular expression engine's handling of complex regular expressions

Trust: 2.52

sources: NVD: CVE-2013-1121 // JVNDB: JVNDB-2013-004264 // CNVD: CNVD-2013-13158 // BID: 62446 // VULHUB: VHN-61123

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2013-13158

AFFECTED PRODUCTS

vendor:	cisco	model:	nx-os	scope:	eq	version:	-	Trust: 1.6
vendor:	cisco	model:	nx-os	scope:	lte	version:	6.1(3)	Trust: 0.8
vendor:	cisco	model:	nx-os software	scope:	-	version:	-	Trust: 0.6
vendor:	cisco	model:	nx-os	scope:	eq	version:	5.2(1)	Trust: 0.3
vendor:	cisco	model:	nx-os 5.1 n1	scope:	-	version:	-	Trust: 0.3
vendor:	cisco	model:	nx-os	scope:	eq	version:	5.1(1)	Trust: 0.3
vendor:	cisco	model:	nx-os 5.0 n2	scope:	-	version:	-	Trust: 0.3
vendor:	cisco	model:	nx-os	scope:	eq	version:	5.0(3)	Trust: 0.3
vendor:	cisco	model:	nx-os 5.0 n1	scope:	-	version:	-	Trust: 0.3
vendor:	cisco	model:	nx-os	scope:	eq	version:	4.2(3)	Trust: 0.3
vendor:	cisco	model:	nx-os	scope:	eq	version:	4.1(4)	Trust: 0.3

sources: CNVD: CNVD-2013-13158 // BID: 62446 // JVNDB: JVNDB-2013-004264 // CNNVD: CNNVD-201309-346 // NVD: CVE-2013-1121

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2013-1121
value:	MEDIUM
Trust: 1.0
NVD:	CVE-2013-1121
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2013-13158
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-201309-346
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-61123
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2013-1121
severity:	MEDIUM
baseScore:	5.4
vectorString:	AV:N/AC:H/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	4.9
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2013-13158
severity:	MEDIUM
baseScore:	5.4
vectorString:	AV:N/AC:H/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	4.9
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6
VULHUB:	VHN-61123
severity:	MEDIUM
baseScore:	5.4
vectorString:	AV:N/AC:H/AU:N/C:N/I:N/A:C
accessVector:	NETWORK
accessComplexity:	HIGH
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	COMPLETE
exploitabilityScore:	4.9
impactScore:	6.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

sources: CNVD: CNVD-2013-13158 // VULHUB: VHN-61123 // JVNDB: JVNDB-2013-004264 // CNNVD: CNNVD-201309-346 // NVD: CVE-2013-1121

PROBLEMTYPE DATA

problemtype:

CWE-399

Trust: 1.9

sources: VULHUB: VHN-61123 // JVNDB: JVNDB-2013-004264 // NVD: CVE-2013-1121

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201309-346

TYPE

resource management error

Trust: 0.6

sources: CNNVD: CNNVD-201309-346

CONFIGURATIONS

sources: JVNDB: JVNDB-2013-004264

PATCH

title:	Cisco NX-OS Software BGP Regex Vulnerability	url:	http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1121	Trust: 0.8
title:	30837	url:	http://tools.cisco.com/security/center/viewAlert.x?alertId=30837	Trust: 0.8
title:	Patch for Cisco NX-OS software BGP Regular Expression Denial of Service Vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/39658	Trust: 0.6

sources: CNVD: CNVD-2013-13158 // JVNDB: JVNDB-2013-004264

EXTERNAL IDS

db:	NVD	id:	CVE-2013-1121	Trust: 3.4
db:	BID	id:	62446	Trust: 1.0
db:	JVNDB	id:	JVNDB-2013-004264	Trust: 0.8
db:	CNNVD	id:	CNNVD-201309-346	Trust: 0.7
db:	CNVD	id:	CNVD-2013-13158	Trust: 0.6
db:	CISCO	id:	20130917 CISCO NX-OS SOFTWARE BGP REGEX VULNERABILITY	Trust: 0.6
db:	VULHUB	id:	VHN-61123	Trust: 0.1

sources: CNVD: CNVD-2013-13158 // VULHUB: VHN-61123 // BID: 62446 // JVNDB: JVNDB-2013-004264 // CNNVD: CNNVD-201309-346 // NVD: CVE-2013-1121

REFERENCES

url:	http://tools.cisco.com/security/center/content/ciscosecuritynotice/cve-2013-1121	Trust: 2.3
url:	http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2013-1121	Trust: 0.8
url:	http://web.nvd.nist.gov/view/vuln/detail?vulnid=cve-2013-1121	Trust: 0.8
url:	http://tools.cisco.com/support/bugtoolkit/search/getbugdetails.do?method=fetchbugdetails&bugid=cscuf49554	Trust: 0.6
url:	http://www.cisco.com/	Trust: 0.3

sources: CNVD: CNVD-2013-13158 // VULHUB: VHN-61123 // BID: 62446 // JVNDB: JVNDB-2013-004264 // CNNVD: CNNVD-201309-346 // NVD: CVE-2013-1121

CREDITS

Cisco

Trust: 0.3

sources: BID: 62446

SOURCES

db:	CNVD	id:	CNVD-2013-13158
db:	VULHUB	id:	VHN-61123
db:	BID	id:	62446
db:	JVNDB	id:	JVNDB-2013-004264
db:	CNNVD	id:	CNNVD-201309-346
db:	NVD	id:	CVE-2013-1121

LAST UPDATE DATE

2024-08-14T15:19:16.714000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2013-13158	date:	2013-09-22T00:00:00
db:	VULHUB	id:	VHN-61123	date:	2013-09-20T00:00:00
db:	BID	id:	62446	date:	2013-09-21T00:11:00
db:	JVNDB	id:	JVNDB-2013-004264	date:	2013-09-25T00:00:00
db:	CNNVD	id:	CNNVD-201309-346	date:	2013-09-23T00:00:00
db:	NVD	id:	CVE-2013-1121	date:	2013-09-20T00:53:24.117

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2013-13158	date:	2013-09-22T00:00:00
db:	VULHUB	id:	VHN-61123	date:	2013-09-19T00:00:00
db:	BID	id:	62446	date:	2013-09-17T00:00:00
db:	JVNDB	id:	JVNDB-2013-004264	date:	2013-09-25T00:00:00
db:	CNNVD	id:	CNNVD-201309-346	date:	2013-09-23T00:00:00
db:	NVD	id:	CVE-2013-1121	date:	2013-09-19T18:55:05.540