Junos JPPPD Denial of Service Vulnerability

Published: 2015-01-23 03:27:13
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:C

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

Summary:
Junos OS is prone to a DoS vulnerability in JPPPD.

Impact:
Every time a crafted PAP authentication request is sent, the Juniper PPP daemon will crash, leading to a denial of service condition.

Technical Details:
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.

Detection Method:
Checks if a vulnerable OS build is present on the target host.

Recommendations:
New builds of Junos OS software are available from Juniper. As a workaround discontinue PAP authentication for PPP subscribers.

Affected Versions:
Junos OS 13.3, 14.1 and 14.2

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2014-6382

SecurityFocus Bugtraq ID:

https://www.securityfocus.com/bid/72070

References:

http://kb.juniper.net/JSA10665

Severity
High
CVSS Score
7.1
Published
2015-01-23
Modified
2018-10-26
Category
JunOS Local Security Checks

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