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CVE-2017-3881

קריטית 9.8 מנוצלת בשטח (KEV)

ניצול פעיל מאומת — קטלוג CISA KEV

שם
Cisco IOS and IOS XE Remote Code Execution Vulnerability
נוסף לקטלוג
יעד טיפול (פדרלי)
פעולה נדרשת
Apply updates per vendor instructions.

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
9.8 (CRITICAL) מקור הציון: NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — סבירות ניצול
99% (אחוזון 100) נכון ל-25/7/2026
CWE
CWE-20

מוצרים מושפעים

cisco: ios; cisco: ios xe; cisco: catalyst 2350-48td-s; cisco: catalyst 2350-48td-sd; cisco: catalyst 2360-48td-s; cisco: catalyst 2918-24tc-c; cisco: catalyst 2918-24tt-c; cisco: catalyst 2918-48tc-c; cisco: catalyst 2918-48tt-c; cisco: catalyst 2928-24tc-c; cisco: catalyst 2960-24-s; cisco: catalyst 2960-24lc-s; cisco: catalyst 2960-24lt-l; cisco: catalyst 2960-24pc-l; cisco: catalyst 2960-24pc-s

קישורים