peter bassill · operator
$ cve CVE-2017-3881 JSON

CVE-2017-3881 KEV EXPLOIT

9.8
CRITICAL · CVSS 3.1 · EPSS 99% (pctl 100)

Patch first

On CISA KEV — known exploited in the wild, due 2022-04-15.

Description

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.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS98.95% — more likely to be exploited than 100% of all CVEs
WeaknessCWE-20
On CISA KEVyes — remediate by 2022-04-15
Public exploityes
Published2017-03-17
Last modified2026-06-17

CISA KEV

NameCisco IOS and IOS XE Remote Code Execution Vulnerability
Added2022-03-25
Due2022-04-15
Vendor / productCisco / IOS and IOS XE
Ransomware usenone reported

Affected (40)

VendorProduct
ciscocatalyst 2350-48td-s
ciscocatalyst 2350-48td-sd
ciscocatalyst 2360-48td-s
ciscocatalyst 2918-24tc-c
ciscocatalyst 2918-24tt-c
ciscocatalyst 2918-48tc-c
ciscocatalyst 2918-48tt-c
ciscocatalyst 2928-24tc-c
ciscocatalyst 2960-24-s
ciscocatalyst 2960-24lc-s
ciscocatalyst 2960-24lt-l
ciscocatalyst 2960-24pc-l
ciscocatalyst 2960-24pc-s
ciscocatalyst 2960-24tc-l
ciscocatalyst 2960-24tc-s
ciscocatalyst 2960-24tt-l
ciscocatalyst 2960-48pst-l
ciscocatalyst 2960-48pst-s
ciscocatalyst 2960-48tc-l
ciscocatalyst 2960-48tc-s
ciscocatalyst 2960-48tt-l
ciscocatalyst 2960-48tt-s
ciscocatalyst 2960-8tc-l
ciscocatalyst 2960-8tc-s
ciscocatalyst 2960-plus 24lc-l
ciscocatalyst 2960-plus 24lc-s
ciscocatalyst 2960-plus 24pc-l
ciscocatalyst 2960-plus 24pc-s
ciscocatalyst 2960-plus 24tc-l
ciscocatalyst 2960-plus 24tc-s
ciscocatalyst 2960-plus 48pst-l
ciscocatalyst 2960-plus 48pst-s
ciscocatalyst 2960-plus 48tc-l
ciscocatalyst 2960-plus 48tc-s
ciscocatalyst 2960c-12pc-l
ciscocatalyst 2960c-8pc-l
ciscocatalyst 2960c-8tc-l
ciscocatalyst 2960c-8tc-s
ciscoios
ciscoios xe

Public exploits

SourceTitleDate
exploit-dbCisco Catalyst 2960 IOS 12.2(55)SE11 - 'ROCEM' Remote Code Execution2017-04-12
exploit-dbCisco Catalyst 2960 IOS 12.2(55)SE1 - 'ROCEM' Remote Code Execution2017-04-12

References

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