8.1
HIGH
CVE-2017-2342
Juniper Networks Junos OS MACsec Link Fallacy
Description

MACsec feature on Juniper Networks Junos OS 15.1X49 prior to 15.1X49-D100 on SRX300 series does not report errors when a secure link can not be established. It falls back to an unencrypted link. This can happen when MACsec is configured on ports that are not capable of MACsec or when a secure link can not be established. This can mislead customers into believing that a link is secure. On SRX 300 series devices, prior to 15.1X49-D100, MACsec was only supported on control and fabric ports of SRX340 and SRX345 devices. SRX300 and and SRX320 did not have any MACsec capable ports. Configuring MACsec on ports that were not MACsec capable would have resulted in this issue. Affected releases are Juniper Networks Junos OS 15.1X49 prior to 15.1X49-D100 on SRX300 series.

INFO

Published Date :

July 17, 2017, 1:18 p.m.

Last Modified :

Nov. 21, 2024, 3:23 a.m.

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2017-2342 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Juniper junos
2 Juniper srx300
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-2342.

URL Resource
http://www.securitytracker.com/id/1038890 Third Party Advisory VDB Entry
https://kb.juniper.net/JSA10790 Vendor Advisory
http://www.securitytracker.com/id/1038890 Third Party Advisory VDB Entry
https://kb.juniper.net/JSA10790 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-2342 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-2342 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1038890
    Added Reference https://kb.juniper.net/JSA10790
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Juniper Networks, Inc. AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Added CWE Juniper Networks, Inc. CWE-392
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-254 NVD-CWE-noinfo
  • Initial Analysis by [email protected]

    Aug. 15, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:A/AC:M/Au:N/C:P/I:P/A:N)
    Added CVSS V3 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type http://www.securitytracker.com/id/1038890 No Types Assigned http://www.securitytracker.com/id/1038890 Third Party Advisory, VDB Entry
    Changed Reference Type https://kb.juniper.net/JSA10790 No Types Assigned https://kb.juniper.net/JSA10790 Vendor Advisory
    Added CWE CWE-254
    Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d30:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d35:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d40:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d45:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d50:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d55:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d60:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d65:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d70:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d75:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d80:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d90:*:*:*:*:*:* OR cpe:2.3:h:juniper:srx300:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 18, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1038890 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 17, 2017

    Action Type Old Value New Value
    Removed Reference http://www.securitytracker.com/id/1038890 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-2342 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-2342 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.00%

score

0.28438

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability