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.
Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is in the KEV database since March 25, 2022.
Exploitation active
Automatable yes
Technical Impact total
Affected Vendors & Products
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Cisco |
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Configuration 1 [-]
AND |
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No data.
References
History
Fri, 15 Nov 2024 18:15:00 +0000
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Metrics |
kev
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2017-03-17T22:00:00
Updated: 2024-11-15T18:00:24.703Z
Reserved: 2016-12-21T00:00:00
Link: CVE-2017-3881
Vulnrichment
Updated: 2024-08-05T14:39:41.294Z
NVD
Status : Modified
Published: 2017-03-17T22:59:00.640
Modified: 2024-11-21T03:26:18.337
Link: CVE-2017-3881
Redhat
No data.