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ID

VAR-202103-0550


CVE

CVE-2021-1391


TITLE

Cisco IOS XE  Active debug code vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-004894

DESCRIPTION

A vulnerability in the dragonite debugger of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker could exploit this vulnerability by bypassing the consent token mechanism with the residual scripts on the affected device. A successful exploit could allow the attacker to escalate from privilege level 15 to root privilege. Cisco IOS XE Exists in an active debug code vulnerability.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Cisco IOS XE Software is an operating system of Cisco (Cisco). A single operating system for enterprise wired and wireless access, aggregation, core, and WAN, Cisco IOS XE reduces business and network complexity

Trust: 1.8

sources: NVD: CVE-2021-1391 // JVNDB: JVNDB-2021-004894 // VULHUB: VHN-374445 // VULMON: CVE-2021-1391

AFFECTED PRODUCTS

vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e2a

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vendor:ciscomodel:ios xescope:eqversion:16.12.1w

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vendor:ciscomodel:ios xescope:eqversion:16.8.3

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e1a

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vendor:ciscomodel:ios xescope:eqversion:3.10.1e

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vendor:ciscomodel:ios xescope:eqversion:17.2.1

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vendor:ciscomodel:ios xescope:eqversion:16.12.1a

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e3k

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vendor:ciscomodel:ios xescope:eqversion:3.9.0e

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vendor:ciscomodel:ios xescope:eqversion:3.10.0e

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vendor:ciscomodel:iosscope:eqversion:12.2\(6\)i1

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vendor:ciscomodel:ios xescope:eqversion:16.9.3h

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vendor:ciscomodel:ios xescope:eqversion:16.10.1f

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vendor:ciscomodel:ios xescope:eqversion:3.10.0ce

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vendor:ciscomodel:ios xescope:eqversion:17.2.1r

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vendor:ciscomodel:ios xescope:eqversion:3.9.2be

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vendor:ciscomodel:ios xescope:eqversion:16.10.1e

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vendor:ciscomodel:ios xescope:eqversion:16.8.1c

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vendor:ciscomodel:iosscope:eqversion:15.2\(5\)e2c

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e0a

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vendor:ciscomodel:ios xescope:eqversion:16.12.1z

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vendor:ciscomodel:ios xescope:eqversion:3.10.1se

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vendor:ciscomodel:ios xescope:eqversion:3.11.3ae

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vendor:ciscomodel:iosscope:eqversion:15.1\(3\)svs

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vendor:ciscomodel:ios xescope:eqversion:3.10.1ae

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e1

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e2

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vendor:ciscomodel:ios xescope:eqversion:17.1.1a

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vendor:ciscomodel:ios xescope:eqversion:16.12.2a

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vendor:ciscomodel:iosscope:eqversion:15.2\(5\)e1

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e2b

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vendor:ciscomodel:iosscope:eqversion:15.2\(7b\)e0b

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vendor:ciscomodel:iosscope:eqversion:15.3\(3\)jf13

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vendor:ciscomodel:ios xescope:eqversion:3.9.2e

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vendor:ciscomodel:ios xescope:eqversion:16.10.1s

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vendor:ciscomodel:ios xescope:eqversion:16.8.1e

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vendor:ciscomodel:iosscope:eqversion:15.2\(5a\)e

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vendor:ciscomodel:ios xescope:eqversion:17.2.3

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vendor:ciscomodel:ios xescope:eqversion:16.9.1b

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vendor:ciscomodel:ios xescope:eqversion:17.1.1s

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vendor:ciscomodel:ios xescope:eqversion:16.12.3

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vendor:ciscomodel:ios xescope:eqversion:16.9.5f

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e1s

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vendor:ciscomodel:ios xescope:eqversion:3.11.2e

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e0a

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vendor:ciscomodel:ios xescope:eqversion:16.8.1b

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vendor:ciscomodel:iosscope:eqversion:15.2\(5b\)e

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vendor:ciscomodel:iosscope:eqversion:15.2\(5c\)e

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vendor:ciscomodel:ios xescope:eqversion:16.10.3

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vendor:ciscomodel:ios xescope:eqversion:16.12.2s

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vendor:ciscomodel:iosscope:eqversion:15.1\(3\)svr1

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vendor:ciscomodel:ios xescope:eqversion:16.10.1a

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vendor:ciscomodel:ios xescope:eqversion:16.11.1c

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vendor:ciscomodel:iosscope:eqversion:15.1\(3\)svs1

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e2

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vendor:ciscomodel:ios xescope:eqversion:16.12.1

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vendor:ciscomodel:ios xescope:eqversion:16.12.1za

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vendor:ciscomodel:ios xescope:eqversion:16.12.1y

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vendor:ciscomodel:ios xescope:eqversion:16.10.1g

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vendor:ciscomodel:ios xescope:eqversion:16.9.3

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vendor:ciscomodel:ios xescope:eqversion:16.12.3a

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vendor:ciscomodel:ios xescope:eqversion:16.9.1a

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vendor:ciscomodel:ios xescope:eqversion:16.9.3s

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e2a

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vendor:ciscomodel:ios xescope:eqversion:3.11.1e

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vendor:ciscomodel:iosscope:eqversion:15.2\(5\)ea

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vendor:ciscomodel:ios xescope:eqversion:3.11.2ae

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vendor:ciscomodel:ios xescope:eqversion:17.1.1t

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vendor:ciscomodel:ios xescope:eqversion:17.1.1

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e

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vendor:ciscomodel:ios xescope:eqversion:16.9.2s

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vendor:ciscomodel:ios xescope:eqversion:16.9.1

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e0s

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vendor:ciscomodel:ios xescope:eqversion:3.11.0e

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vendor:ciscomodel:iosscope:eqversion:15.2\(5\)e2b

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vendor:ciscomodel:ios xescope:eqversion:16.9.4

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vendor:ciscomodel:ios xescope:eqversion:16.9.4c

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vendor:ciscomodel:ios xescope:eqversion:16.9.5

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vendor:ciscomodel:ios xescope:eqversion:3.10.3e

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vendor:ciscomodel:iosscope:eqversion:15.2\(5a\)e1

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vendor:ciscomodel:ios xescope:eqversion:3.10.2e

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vendor:ciscomodel:ios xescope:eqversion:16.9.1c

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vendor:ciscomodel:ios xescope:eqversion:16.12.1c

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vendor:ciscomodel:ios xescope:eqversion:17.1.2

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vendor:ciscomodel:ios xescope:eqversion:16.9.2

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vendor:ciscomodel:iosscope:eqversion:15.1\(3\)svr3

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e3

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vendor:ciscomodel:ios xescope:eqversion:16.8.1a

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vendor:ciscomodel:ios xescope:eqversion:16.12.1s

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vendor:ciscomodel:ios xescope:eqversion:16.10.1

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vendor:ciscomodel:ios xescope:eqversion:16.12.3s

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vendor:ciscomodel:ios xescope:eqversion:16.9.2a

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vendor:ciscomodel:ios xescope:eqversion:3.11.1ae

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vendor:ciscomodel:ios xescope:eqversion:3.9.1e

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e

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vendor:ciscomodel:ios xescope:eqversion:16.9.1d

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vendor:ciscomodel:ios xescope:eqversion:16.8.1d

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vendor:ciscomodel:iosscope:eqversion:15.2\(4\)ea10

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vendor:ciscomodel:ios xescope:eqversion:3.11.3e

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e3

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vendor:ciscomodel:ios xescope:eqversion:16.9.6

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vendor:ciscomodel:ios xescope:eqversion:16.10.1b

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vendor:ciscomodel:ios xescope:eqversion:16.10.1c

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vendor:ciscomodel:ios xescope:eqversion:16.10.1d

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vendor:ciscomodel:iosscope:eqversion:15.0\(2\)se13a

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vendor:ciscomodel:ios xescope:eqversion:17.2.1a

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e0b

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vendor:ciscomodel:ios xescope:eqversion:16.12.1x

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e2b

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vendor:ciscomodel:iosscope:eqversion:15.2\(5\)e

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)eb

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vendor:ciscomodel:iosscope:eqversion:15.2\(6\)e0c

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vendor:ciscomodel:ios xescope:eqversion:16.12.1t

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e1a

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vendor:ciscomodel:ios xescope:eqversion:16.12.2t

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vendor:ciscomodel:iosscope:eqversion:15.2\(5\)e2

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vendor:ciscomodel:ios xescope:eqversion:16.11.2

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vendor:ciscomodel:ios xescope:eqversion:17.2.1v

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vendor:ciscomodel:ios xescope:eqversion:16.12.2

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vendor:ciscomodel:ios xescope:eqversion:16.8.1

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vendor:ciscomodel:ios xescope:eqversion:16.8.1s

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vendor:ciscomodel:ios xescope:eqversion:16.10.2

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vendor:ciscomodel:iosscope:eqversion:15.2\(5\)ex

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vendor:ciscomodel:ios xescope:eqversion:16.11.1a

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vendor:ciscomodel:ios xescope:eqversion:16.9.3a

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vendor:ciscomodel:iosscope:eqversion:15.2\(7a\)e0b

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vendor:ciscomodel:ios xescope:eqversion:17.2.2

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vendor:ciscomodel:iosscope:eqversion:15.2\(7\)e1

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vendor:ciscomodel:ios xescope:eqversion:16.9.1s

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vendor:ciscomodel:ios xescope:eqversion:16.8.2

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vendor:ciscomodel:ios xescope:eqversion:16.11.1

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vendor:ciscomodel:ios xescope:eqversion:16.11.1s

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vendor:ciscomodel:ios xescope:eqversion:16.11.1b

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vendor:ciscomodel:iosscope:eqversion:15.1\(3\)svr2

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vendor:シスコシステムズmodel:cisco ios xescope: - version: -

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vendor:シスコシステムズmodel:cisco iosscope: - version: -

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sources: JVNDB: JVNDB-2021-004894 // NVD: CVE-2021-1391

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-1391
value: MEDIUM

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ykramarz@cisco.com: CVE-2021-1391
value: MEDIUM

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NVD: CVE-2021-1391
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-202103-1412
value: MEDIUM

Trust: 0.6

VULHUB: VHN-374445
value: HIGH

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VULMON: CVE-2021-1391
value: HIGH

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nvd@nist.gov: CVE-2021-1391
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

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VULHUB: VHN-374445
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-1391
baseSeverity: MEDIUM
baseScore: 6.7
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.8
impactScore: 5.9
version: 3.1

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ykramarz@cisco.com: CVE-2021-1391
baseSeverity: MEDIUM
baseScore: 5.1
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: HIGH
availabilityImpact: NONE
exploitabilityScore: 0.8
impactScore: 4.2
version: 3.1

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NVD: CVE-2021-1391
baseSeverity: MEDIUM
baseScore: 6.7
vectorString: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-374445 // VULMON: CVE-2021-1391 // JVNDB: JVNDB-2021-004894 // CNNVD: CNNVD-202103-1412 // NVD: CVE-2021-1391 // NVD: CVE-2021-1391

PROBLEMTYPE DATA

problemtype:CWE-489

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problemtype:Active debug code (CWE-489) [ Other ]

Trust: 0.8

sources: VULHUB: VHN-374445 // JVNDB: JVNDB-2021-004894 // NVD: CVE-2021-1391

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202103-1412

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202103-1412

PATCH

title:cisco-sa-XE-FSM-Yj8qJbJcurl:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-XE-FSM-Yj8qJbJc

Trust: 0.8

title:Cisco IOS XE Software Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=145062

Trust: 0.6

title:Cisco: Cisco IOS and IOS XE Software Privilege Escalation Vulnerabilityurl:https://vulmon.com/vendoradvisory?qidtp=cisco_security_advisories_and_alerts_ciscoproducts&qid=cisco-sa-XE-FSM-Yj8qJbJc

Trust: 0.1

sources: VULMON: CVE-2021-1391 // JVNDB: JVNDB-2021-004894 // CNNVD: CNNVD-202103-1412

EXTERNAL IDS

db:NVDid:CVE-2021-1391

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db:JVNDBid:JVNDB-2021-004894

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db:CNNVDid:CNNVD-202103-1412

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db:VULHUBid:VHN-374445

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db:VULMONid:CVE-2021-1391

Trust: 0.1

sources: VULHUB: VHN-374445 // VULMON: CVE-2021-1391 // JVNDB: JVNDB-2021-004894 // CNNVD: CNNVD-202103-1412 // NVD: CVE-2021-1391

REFERENCES

url:https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-xe-fsm-yj8qjbjc

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url:https://nvd.nist.gov/vuln/detail/cve-2021-1391

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url:https://vigilance.fr/vulnerability/cisco-ios-ios-xe-multiple-vulnerabilities-34940

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url:https://cwe.mitre.org/data/definitions/489.html

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url:https://nvd.nist.gov

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sources: VULHUB: VHN-374445 // VULMON: CVE-2021-1391 // JVNDB: JVNDB-2021-004894 // CNNVD: CNNVD-202103-1412 // NVD: CVE-2021-1391

SOURCES

db:VULHUBid:VHN-374445
db:VULMONid:CVE-2021-1391
db:JVNDBid:JVNDB-2021-004894
db:CNNVDid:CNNVD-202103-1412
db:NVDid:CVE-2021-1391

LAST UPDATE DATE

2024-11-23T22:51:06.732000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-374445date:2021-03-30T00:00:00
db:VULMONid:CVE-2021-1391date:2021-03-30T00:00:00
db:JVNDBid:JVNDB-2021-004894date:2021-12-01T09:06:00
db:CNNVDid:CNNVD-202103-1412date:2021-03-31T00:00:00
db:NVDid:CVE-2021-1391date:2024-11-21T05:44:14.797

SOURCES RELEASE DATE

db:VULHUBid:VHN-374445date:2021-03-24T00:00:00
db:VULMONid:CVE-2021-1391date:2021-03-24T00:00:00
db:JVNDBid:JVNDB-2021-004894date:2021-12-01T00:00:00
db:CNNVDid:CNNVD-202103-1412date:2021-03-24T00:00:00
db:NVDid:CVE-2021-1391date:2021-03-24T20:15:13.993