Juniper Junos SRX MACsec Feature Secure Link Failure Silent Fallback Information Disclosure (JSA10790)

medium Nessus Plugin ID 102703


The remote device is missing a vendor-supplied security patch.


According to its self-reported version and model number, the remote Juniper Junos device is affected by an information disclosure vulnerability in the MACsec feature due to error reporting over an unencrypted link when a secure link cannot be established. An adjacent attacker can exploit this to disclose or manipulate error information.


Upgrade to the relevant Junos software release referenced in Juniper security advisory JSA10790.

See Also

Plugin Details

Severity: Medium

ID: 102703

File Name: juniper_jsa10790.nasl

Version: 1.3

Type: combined

Published: 8/23/2017

Updated: 7/12/2018

Risk Information


Risk Factor: Medium

Score: 5.2


Risk Factor: Medium

Base Score: 4.8

Temporal Score: 3.5

Vector: AV:A/AC:L/Au:N/C:P/I:P/A:N

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version, Host/Juniper/model

Exploit Ease: No known exploits are available

Patch Publication Date: 7/12/2017

Vulnerability Publication Date: 7/12/2017

Reference Information

CVE: CVE-2017-2342

JSA: JSA10790