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Junos Os Evolved CVE-2024-39553

MEDIUM
Exposure of Resource to Wrong Sphere (CWE-668)
2024-07-11 sirt@juniper.net
Information Disclosure Juniper Denial Of Service Junos Os Evolved
6.9
CVSS 4.0 · Vendor: juniper
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Severity by source

Vendor (juniper) PRIMARY
6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:X/U:X

Primary rating from Vendor (juniper) · only source for this CVE.

CVSS VectorVendor: juniper

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
CVE Published
Jul 11, 2024 - 17:15 cve.org
MEDIUM 6.9

DescriptionCVE.org

An Exposure of Resource to Wrong Sphere vulnerability in the sampling service of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to send arbitrary data to the device, which leads msvcsd process to crash with limited availability impacting Denial of Service (DoS) and allows unauthorized network access to the device, potentially impacting system integrity.

This issue only happens when inline jflow is configured.

This does not impact any forwarding traffic. The impacted services MSVCS-DB app crashes momentarily and recovers by itself.

This issue affects Juniper Networks Junos OS Evolved:

  • 21.4 versions earlier than 21.4R3-S7-EVO;
  • 22.2 versions earlier than 22.2R3-S3-EVO;
  • 22.3 versions earlier than 22.3R3-S2-EVO;
  • 22.4 versions earlier than 22.4R3-EVO;
  • 23.2 versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO.

AnalysisAI

An Exposure of Resource to Wrong Sphere vulnerability in the sampling service of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to send arbitrary data to the. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Exposure of Resource to Wrong Sphere (CWE-668), which allows attackers to access resources from an unintended security context. An Exposure of Resource to Wrong Sphere vulnerability in the sampling service of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to send arbitrary data to the device, which leads msvcsd process to crash with limited availability impacting Denial of Service (DoS) and allows unauthorized network access to the device, potentially impacting system integrity. This issue only happens when inline jflow is configured. This does not impact any forwarding traffic. The impacted services MSVCS-DB app crashes momentarily and recovers by itself.4 versions earlier than 21.4R3-S7-EVO; * 22.2 versions earlier than 22.2R3-S3-EVO; * 22.3 versions earlier than 22.3R3-S2-EVO; * 22.4 versions earlier than 22.4R3-EVO; * 23.2 versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO. Affected products include: Juniper Junos Os Evolved.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement proper access controls, validate resource access permissions, use security boundaries.

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CVE-2024-39553 vulnerability details – vuln.today
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