PT-2017-15370 · Juniper Networks · Srx300+1

Published 2017-07-14 · Updated 2019-10-09 · CVE-2017-2342

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Junos OS versions prior to 15.1X49-D100 on SRX300 series

Description The MACsec feature on Juniper Networks Junos OS does not report errors when a secure link cannot be established, falling back to an unencrypted link instead. This can occur when MACsec is configured on ports that are not capable of MACsec or when a secure link cannot be established, potentially misleading customers into believing that a link is secure.

Recommendations For Junos OS versions prior to 15.1X49-D100 on SRX300 series, update to version 15.1X49-D100 or later to resolve the issue. As a temporary workaround, consider avoiding the configuration of MACsec on ports that are not MACsec capable to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-392

Related Identifiers

CVE-2017-2342

Affected Products

Junos

Srx300

References · 4

• https://kb.juniper.net/JSA10790 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-2342 · Security Note
• https://osv.dev/vulnerability/CVE-2017-2342 · Vendor Advisory
• http://securitytracker.com/id/1038890 · Note