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7.5Yüksek KEV

CVE-2017-12231Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability

Cisco IOS Yayım: (9 yıl önce)

Aktif olarak istismar ediliyor — Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability

CISA bu açığın gerçek saldırılarda kullanıldığını 03.03.2022 tarihinde doğruladı. ABD federal kurumları için düzeltme son tarihi: 24.03.2022.

Gerekli işlem: Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-12231

Açıklama

A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper translation of H.323 messages that use the Registration, Admission, and Status (RAS) protocol and are sent to an affected device via IPv4 packets. An attacker could exploit this vulnerability by sending a crafted H.323 RAS packet through an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are configured to use an application layer gateway with NAT (NAT ALG) for H.323 RAS messages. By default, a NAT ALG is enabled for H.323 RAS messages. Cisco Bug IDs: CSCvc57217.

Zayıflık türü (CWE): CWE-399

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

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
cisco ios 12.4 – ≤ 15.6
— Cisco IOS Cisco IOS

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (1)
  • cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* ≥ 12.4 ≤ 15.6

Aynı üründe son açıklar — Cisco IOS / IOS XE / ASA

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