Actively exploited in the wild
Cisco IOS Software Common Industrial Protocol Request Denial-of-Service Vulnerability
Cisco - IOS software · Listed in the CISA KEV since 2022-03-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2017-12234
HighCVSS 7.5KEVSummary
Wiele podatności w implementacji funkcji Common Industrial Protocol (CIP) w Cisco IOS w wersjach od 12.4 do 15.6 może pozwolić nieautoryzowanemu, zdalnemu atakującemu na spowodowanie ponownego uruchomienia urządzenia, co prowadzi do stanu odmowy usługi (DoS). Problemy te wynikają z nieprawidłowego przetwarzania stworzonych pakietów CIP skierowanych do podatnego urządzenia.
Risk Assessment
Atakujący może wykorzystać te podatności do wysyłania stworzonych pakietów CIP, co może prowadzić do ponownego uruchomienia urządzenia i zakłócenia jego działania. To stwarza ryzyko poważnych przerw w dostępności usług w organizacji.
Recommendation
Zaleca się aktualizację systemu Cisco IOS do najnowszej wersji, która zawiera poprawki dla tych podatności. Dodatkowo, warto monitorować ruch sieciowy w celu wykrywania potencjalnych prób ataków.
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Original NVD description (English source)
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc43709.