FKIE_CVE-2023-36846
Vulnerability from fkie_nvd - Published: 2023-08-17 20:15 - Updated: 2026-06-17 06:07
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/
Summary
A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity.
With a specific request to user.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of
integrity
for a certain
part of the file system, which may allow chaining to other vulnerabilities.
This issue affects Juniper Networks Junos OS on SRX Series:
* All versions prior to 20.4R3-S8;
* 21.1 versions 21.1R1 and later;
* 21.2 versions prior to 21.2R3-S6;
* 21.3 versions
prior to
21.3R3-S5;
* 21.4 versions
prior to
21.4R3-S5;
* 22.1 versions
prior to
22.1R3-S3;
* 22.2 versions
prior to
22.2R3-S2;
* 22.3 versions
prior to
22.3R2-S2, 22.3R3;
* 22.4 versions
prior to
22.4R2-S1, 22.4R3.
References
Impacted products
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"platforms": [
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],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "semver"
},
{
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"status": "affected",
"version": "21.1",
"versionType": "semver"
},
{
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"status": "affected",
"version": "21.2",
"versionType": "semver"
},
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"version": "21.3",
"versionType": "semver"
},
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"status": "affected",
"version": "21.4",
"versionType": "semver"
},
{
"lessThan": "22.1R3-S3",
"status": "affected",
"version": "22.1",
"versionType": "semver"
},
{
"lessThan": "22.2R3-S2",
"status": "affected",
"version": "22.2",
"versionType": "semver"
},
{
"lessThan": "22.3R2-S2, 22.3R3",
"status": "affected",
"version": "22.3",
"versionType": "semver"
},
{
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"status": "affected",
"version": "22.4",
"versionType": "semver"
}
]
}
],
"source": "sirt@juniper.net"
}
],
"cisaActionDue": "2023-11-17",
"cisaExploitAdd": "2023-11-13",
"cisaRequiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"cisaVulnerabilityName": "Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability",
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"value": "A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity.\n\n\n\nWith a specific request to user.php that doesn\u0027t require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of \n\nintegrity\n\nfor a certain\u00a0\n\npart of the\u00a0file system, which may allow chaining to other vulnerabilities.\n\n\nThis issue affects Juniper Networks Junos OS on SRX Series:\n\n\n\n * All versions prior to 20.4R3-S8;\n * 21.1 versions 21.1R1 and later;\n * 21.2 versions prior to 21.2R3-S6;\n * 21.3 versions \n\nprior to \n\n 21.3R3-S5;\n * 21.4 versions \n\nprior to \n\n21.4R3-S5;\n * 22.1 versions \n\nprior to \n\n22.1R3-S3;\n * 22.2 versions \n\nprior to \n\n22.2R3-S2;\n * 22.3 versions \n\nprior to \n\n22.3R2-S2, 22.3R3;\n * 22.4 versions \n\nprior to \n\n22.4R2-S1, 22.4R3."
},
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"value": "A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn\u0027t require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on SRX Series: \n* All versions prior to 20.4R3-S8; \n* 21.1: versions 21.1R1 and later; \n* 21.2: versions prior to 21.2R3-S6; \n* 21.3: versions prior to 21.3R3-S5; \n* 21.4: versions prior to 21.4R3-S5; \n* 22.1: versions prior to 22.1R3-S3; \n* 22.2: versions prior to 22.2R3-S2; \n* 22.3: versions prior to 22.3R2-S2, 22.3R3; \n* 22.4: versions prior to 22.4R2-S1, 22.4R3."
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"id": "CVE-2023-36846",
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.