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Juniper Networks released updates to fix high-severity vulnerabilities in SRX Series and EX Series. These vulnerabilities could be exploited by attackers to gain control of vulnerable systems.
The vulnerabilities, tracked as CVE-2024-21619 and CVE-2024-21620, are rooted in the J-Web component and impact all versions of Junos OS.
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There are vulnerabilities in the J-Web component of Junos OS, identified as CVE-2024-21619 and CVE-2024-21620. These vulnerabilities affect all versions of Junos OS. In addition, two other weaknesses, CVE-2023-36846 and CVE-2023-36851, were disclosed by the company in August 2023.
CVE-2024-21619 (CVSS score: 5.3) – A vulnerability that could expose sensitive configuration information
CVE-2024-21620 (CVSS score: 8.8) – “A vulnerability that could allow attackers to execute arbitrary commands with the target’s permissions”
Cybersecurity company watchTowr Labs found and reported the problems. The issues have been fixed in the latest versions.
CVE-2024-21619 – 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1, and all subsequent releases
CVE-2024-21620 – 20.4R3-S10, 21.2R3-S8, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3-S1, 23.2R2, 23.4R2, and all subsequent releases
Until the fixes are installed, the company suggests either disabling J-Web or limiting access to trusted hosts. Both CVE-2023-36846 and CVE-2023-36851 were added to the Known Exploited Vulnerabilities (KEV) catalog in November 2023 by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) due to evidence of active exploitation.
