FKIE_CVE-2024-39520
Vulnerability from fkie_nvd - Published: 2024-07-11 16:15 - Updated: 2026-06-17 07:42
Severity
Summary
An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading to a full compromise of the system.
The Junos OS Evolved CLI doesn't properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level.
This issue affects Junos OS Evolved:
* All version before 20.4R3-S6-EVO,
* 21.2-EVO versions before 21.2R3-S4-EVO,
* 21.4-EVO versions before 21.4R3-S6-EVO,
* 22.2-EVO versions before 22.2R2-S1-EVO, 22.2R3-EVO,
* 22.3-EVO versions before 22.3R2-EVO.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://supportportal.juniper.net/JSA82975 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://supportportal.juniper.net/JSA82975 | Vendor Advisory |
Impacted products
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An\u00a0Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to \u0027root\u0027 leading to a full compromise of the system.\n\nThe Junos OS Evolved CLI doesn\u0027t properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level.\n\nThis issue affects Junos OS Evolved:\n\n * All version before 20.4R3-S6-EVO,\u00a0\n * 21.2-EVO versions before 21.2R3-S4-EVO,\n * 21.4-EVO versions before 21.4R3-S6-EVO,\u00a0\n * 22.2-EVO versions before 22.2R2-S1-EVO, 22.2R3-EVO,\u00a0\n * 22.3-EVO versions before 22.3R2-EVO."
},
{
"lang": "es",
"value": "Una vulnerabilidad de neutralizaci\u00f3n incorrecta de elementos especiales en los comandos Juniper Networks Junos OS Evolved permite a un atacante local autenticado con privilegios bajos escalar sus privilegios a \u0027root\u0027, lo que lleva a un compromiso total del sistema. La CLI evolucionada de Junos OS no maneja adecuadamente las opciones de comando en algunos casos, lo que permite a los usuarios que ejecutan comandos CLI espec\u00edficos con un conjunto de par\u00e1metros manipulado escalar sus privilegios a root en el nivel de shell. Este problema afecta a Junos OS Evolved: * Todas las versiones anteriores a 20.4R3-S6-EVO, * Versiones 21.2-EVO anteriores a 21.2R3-S4-EVO, * Versiones 21.4-EVO anteriores a 21.4R3-S6-EVO, * Versiones 22.2-EVO anteriores Versiones 22.2R2-S1-EVO, 22.2R3-EVO, * 22.3-EVO anteriores a 22.3R2-EVO."
}
],
"id": "CVE-2024-39520",
"lastModified": "2026-06-17T07:42:06.500",
"metrics": {
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"attackVector": "LOCAL",
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"baseScore": 7.8,
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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"attackRequirements": "NONE",
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"availabilityRequirement": "NOT_DEFINED",
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"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
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"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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"options": [
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{
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{
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],
"role": "CISA Coordinator",
"timestamp": "2024-07-12T00:00:00+00:00",
"version": "2.0.3"
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"published": "2024-07-11T16:15:02.963",
"references": [
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"tags": [
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"vulnStatus": "Modified",
"weaknesses": [
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"value": "CWE-78"
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"type": "Secondary"
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"value": "CWE-78"
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],
"source": "nvd@nist.gov",
"type": "Primary"
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]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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