CVE-2017-3881

Warning

Exploit

EPSS 93.97%
Published 17.03.2017 22:59:00
Last modified 20.04.2025 01:37:25
Source psirt@cisco.com
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A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges. The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster members. The vulnerability is due to the combination of two factors: (1) the failure to restrict the use of CMP-specific Telnet options only to internal, local communications between cluster members and instead accept and process such options over any Telnet connection to an affected device; and (2) the incorrect processing of malformed CMP-specific Telnet options. An attacker could exploit this vulnerability by sending malformed CMP-specific Telnet options while establishing a Telnet session with an affected Cisco device configured to accept Telnet connections. An exploit could allow an attacker to execute arbitrary code and obtain full control of the device or cause a reload of the affected device. This affects Catalyst switches, Embedded Service 2020 switches, Enhanced Layer 2 EtherSwitch Service Module, Enhanced Layer 2/3 EtherSwitch Service Module, Gigabit Ethernet Switch Module (CGESM) for HP, IE Industrial Ethernet switches, ME 4924-10GE switch, RF Gateway 10, and SM-X Layer 2/3 EtherSwitch Service Module. Cisco Bug IDs: CSCvd48893.

Affected products Warnungen 1 Metrics 3 CWE 1 References 9

Data is provided by the National Vulnerability Database (NVD)

Cisco ≫ Ios Version >= 12.2s <= 15.1\(3\)svs

Cisco ≫ Ios Xe Version >= 3.2sg <= 3.9e

25.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Cisco IOS and IOS XE Remote Code Execution Vulnerability

Vulnerability

A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges.

Description

Apply updates per vendor instructions.

Required actions

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	93.97%	0.999

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	9.8	3.9	5.9	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov	10	10	10	AV:N/AC:L/Au:N/C:C/I:C/A:C

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

http://www.securityfocus.com/bid/96960

Third Party Advisory

VDB Entry

http://www.securityfocus.com/bid/97391

Third Party Advisory

VDB Entry

http://www.securitytracker.com/id/1038059

Third Party Advisory

VDB Entry

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170317-cmp

Vendor Advisory

https://www.exploit-db.com/exploits/41872/