9.8Kritik KEV

CVE-2017-3881Cisco IOS and IOS XE Remote Code Execution Vulnerability

Cisco IOS and IOS XE Software Yayım: (9 yıl önce)

Aktif olarak istismar ediliyor — Cisco IOS and IOS XE Remote Code Execution Vulnerability

CISA bu açığın gerçek saldırılarda kullanıldığını 25.03.2022 tarihinde doğruladı. ABD federal kurumları için düzeltme son tarihi: 15.04.2022.

Gerekli işlem: Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-3881

Açıklama

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.

Zayıflık türü (CWE): CWE-20

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
cisco ios 12.2s – ≤ 15.1\(3\)svs
cisco ios xe 3.2sg – ≤ 3.9e
— Cisco IOS and IOS XE Software Cisco IOS and IOS XE Software

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (2)

  • cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* ≥ 12.2s ≤ 15.1\(3\)svs
  • cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* ≥ 3.2sg ≤ 3.9e