Improper input validation in Junos OS - CVE-2020-1604

 

Improper input validation in Junos OS - CVE-2020-1604

Published: January 3, 2020 / Updated: October 26, 2023


Vulnerability identifier: #VU82430
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1604
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Problem On EX4300, EX4600, QFX3500, and QFX5100 Series, a vulnerability in the IP firewall filter component may cause the firewall filter evaluation of certain packets to fail. This issue only affects firewall filter evaluation of certain packets destined to the device Routing Engine (RE).


Affected software

Junos OS

How to mitigate CVE-2020-1604

Install updates from vendor's website.

For QFX5100 Series and EX4600 Series:

The following software releases have been updated to resolve this specific issue: 14.1X53-D12 and all subsequent releases.

For QFX3500 Series:

The following software releases have been updated to resolve this specific issue: 14.1X53-D52 and all subsequent releases.

For EX4300 Series:

The following software releases have been updated to resolve this specific issue: 14.1X53-D48, 15.1R7-S3, 16.1R7, 17.1R3, 17.2R3, 17.3R2-S5, 17.3R3, 17.4R2, 18.1R3, 18.2R2, 18.3R1 and all subsequent releases.


Junos OS - addressed in versions 14.1X53-D48, 15.1R7-S3, 16.1R7, 17.1R3, 17.2R3, 17.3R2-S5, 17.3R3, 17.4R2, 18.1R3, 18.2R2, 18.3R1

External References

Related Security Bulletins