Auth bypass in Juniper Junos OS Evolved
CVE-2024-39546
A Missing Authorization vulnerability in the Socket Intercept (SI) command file interface of Juniper Networks Junos OS Evolved allows an authenticated, low-privilege local attacker to modify certain files, allowing the attacker to cause any command to execute with root privileges leading to privilege escalation ultimately compromising the system. This issue affects Junos OS Evolved: * All versions prior to 21.2R3-S8-EVO, * 21.4 versions prior to 21.4R3-S6-EVO, * 22.1 versions prior to 22.1R3-S5-EVO, * 22.2 versions prior to 22.2R3-S3-EVO, * 22.3 versions prior to 22.3R3-S3-EVO, * 22.4 versions prior to 22.4R3-EVO, * 23.2 versions prior to 23.2R2-EVO.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (7.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Juniper Junos OS Evolved — versions 18.3, 19.1, 19.2
- Juniper Networks Junos OS Evolved — versions 0, 21.4, 22.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- supportportal.juniper.net/JSA83008 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-39546?
- CVE-2024-39546 is a high-severity vulnerability in Juniper Junos OS Evolved, classified under Missing Authorization. CVSS score: 7.3/10. Published 2024-07-11.
- How severe is CVE-2024-39546?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2024-39546 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.