CVE-2019-0054 Weak cryptography in Junos OS
Attackers can intercept app-id signature updates via MitM due to improper certificate validation, compromising device integrity and confidentiality.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-0054?
CVE-2019-0054 is a medium-severity vulnerability in Juniper Junos, published on 9 Oct 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An Improper Certificate Validation weakness in the SRX Series Application Identification (app-id) signature update client of Juniper Networks Junos OS allows an attacker to perform Man-in-the-Middle (MitM) attacks which may compromise the integrity and confidentiality of the device. This issue affects: Juniper Networks Junos OS 15.1X49 versions prior to 15.1X49-D120 on SRX Series devices. No other versions of Junos OS are affected.
Which versions are affected by CVE-2019-0054?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2019-0054?
No fix has been published for CVE-2019-0054 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-0054 being exploited?
There is no known exploitation of CVE-2019-0054 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification
Sources
Also known as GHSA-5fw8-5jwx-qwh6.