CVE-2012-3949
HighSummary
Implementacja SIP w Cisco Unified Communications Manager (CUCM) w wersjach 6.x i 7.x przed 7.1(5b)su5, 8.x przed 8.5(1)su4 oraz 8.6 przed 8.6(2a)su1, a także w Cisco IOS 12.2 do 12.4 i 15.0 do 15.2 oraz Cisco IOS XE 3.3.xSG przed 3.3.1SG, 3.4.xS i 3.5.xS, pozwala zdalnym atakującym na spowodowanie odmowy usługi (awaria usługi lub ponowne uruchomienie urządzenia) poprzez spreparowaną wiadomość SIP zawierającą opis sesji SDP.
Risk Assessment
Atakujący mogą wykorzystać tę podatność do zakłócenia działania systemu komunikacyjnego, co może prowadzić do przestojów w usługach i utraty dostępności dla użytkowników.
Recommendation
Zaleca się aktualizację oprogramowania do najnowszych wersji, które eliminują tę podatność, oraz monitorowanie ruchu SIP w celu wykrywania potencjalnych ataków.
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Original NVD description (English source)
The SIP implementation in Cisco Unified Communications Manager (CUCM) 6.x and 7.x before 7.1(5b)su5, 8.x before 8.5(1)su4, and 8.6 before 8.6(2a)su1; Cisco IOS 12.2 through 12.4 and 15.0 through 15.2; and Cisco IOS XE 3.3.xSG before 3.3.1SG, 3.4.xS, and 3.5.xS allows remote attackers to cause a denial of service (service crash or device reload) via a crafted SIP message containing an SDP session description, aka Bug IDs CSCtw66721, CSCtj33003, and CSCtw84664.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

