Denial of service in Junos OS - CVE-2017-2342
Published: July 14, 2017
Vulnerability identifier: #VU7541
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-2342
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The weakness exists due to the system falls back to an unencrypted link when MACsec is configured on a port that is not capable of MACsec or when a secure link can not be established. A remote attacker that can monitor the network can view potentially sensitive information on the target link.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists due to the system falls back to an unencrypted link when MACsec is configured on a port that is not capable of MACsec or when a secure link can not be established. A remote attacker that can monitor the network can view potentially sensitive information on the target link.
Successful exploitation of the vulnerability results in denial of service.
Affected software
Junos OS
How to mitigate CVE-2017-2342
The vulnerability is addressed in the following versions:
15.1X49-D100.
15.1X49-D100.