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2015-12-19
Juniper ScreenOS Remote Administrative Access Backdoor Vulnerability (CVE-2015-7755) Analysis and Mitigation Guide
[Affected Scope] Juniper ScreenOS versions 6.2.0r15 through 6.2.0r18 and 6.3.0r12 through 6.3.0r20
[Impact] Remote attackers can bypass authentication and gain full administrative (root) access to the firewall via SSH or TELNET using a hardcoded master password
[Mitigation] Immediately upgrade ScreenOS to patched versions (6.3.0r21 or the respective 'b' releases) and disable external SSH/TELNET access