CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
в каталога KEV от 3 март 2022
Атакува се в момента
Време до експлоатация
след публикуването
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: активно се експлоатира
- Атаката може да се автоматизира
Описание
Оригинално описание
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.
Засегнати продукти
- n/a Cisco IOS: Cisco IOS
Вид слабост
История
- 28 септември 2017 Публикувано
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2017-12231
- https://nvd.nist.gov/vuln/detail/CVE-2017-12231
- http://www.securitytracker.com/id/1039449
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-nat
- http://www.securityfocus.com/bid/101039
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12231