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Junos JPPPD Denial of Service Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Junos OS is prone to a DoS vulnerability in JPPPD.
Insight
Insight
Using PPP authentication with a specifically crafted PAP Authenticate-Request may cause the Juniper PPP daemon (jpppd) to crash and restart. After PPPoE Discovery and LCP phase is successfully negotiated, when the crafted PAP Authenticate-Request is received, jpppd crashes and no response is sent by the broadband edge router to the subscriber.
Affected Software
Affected Software
Junos OS 13.3, 14.1 and 14.2
Detection Method
Detection Method
Checks if a vulnerable OS build is present on the target host.
Solution
Solution
New builds of Junos OS software are available from Juniper. As a workaround discontinue PAP authentication for PPP subscribers.