CVE-2023-36851 (GCVE-0-2023-36851)
Vulnerability from cvelistv5
Published
2023-09-26 19:53
Modified
2025-10-21 23:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-306 - Missing Authentication for Critical Function
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
webauth_operation.php
that doesn't require authentication, an attacker is able to upload and download arbitrary files via J-Web, leading to a loss of
integrity or confidentiality, which may allow chaining to other vulnerabilities.
This issue affects Juniper Networks Junos OS on SRX Series:
*
21.2 versions prior to 21.2R3-S8;
* 21.4
versions prior to
21.4R3-S6;
* 22.1
versions prior to
22.1R3-S5;
* 22.2
versions prior to
22.2R3-S3;
* 22.3
versions prior to
22.3R3-S2;
* 22.4 versions prior to 22,4R2-S2, 22.4R3;
* 23.2 versions prior to
23.2R1-S2, 23.2R2.
References
| ► | URL | Tags | |||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Juniper Networks | Junos OS |
Version: 21.2 ≤ Version: 21.4 ≤ Version: 22.1 ≤ Version: 22.2 ≤ Version: 22.3 ≤ Version: 22.4 ≤ Version: 23.2 ≤ |
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog
Date added: 2023-11-13
Due date: 2023-11-17
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Used in ransomware: Unknown
Notes: https://supportportal.juniper.net/s/article/2023-08-Out-of-Cycle-Security-Bulletin-Junos-OS-SRX-Series-and-EX-Series-Multiple-vulnerabilities-in-J-Web-can-be-combined-to-allow-a-preAuth-Remote-Code-Execution?language=en_US ; https://nvd.nist.gov/vuln/detail/CVE-2023-36851
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\\n\\n21.2 versions prior to 21.2R3-S8;\\n * 21.4 \\n\\nversions prior to \\n\\n21.4R3-S6;\\n * 22.1 \\n\\nversions prior to \\n\\n22.1R3-S5;\\n * 22.2 \\n\\nversions prior to \\n\\n22.2R3-S3;\\n * 22.3 \\n\\nversions prior to \\n\\n22.3R3-S2;\\n * 22.4 versions prior to 22,4R2-S2, 22.4R3;\\n * 23.2 versions prior to \\n\\n23.2R1-S2,\\u00a023.2R2.\\n\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"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.\u003cbr\u003e\u003cbr\u003e\\n\\nWith a specific request to \\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003ewebauth_operation.php\u003c/span\u003e\\n\\nthat doesn\u0027t require authentication, an attacker is able to upload and download arbitrary files via J-Web, leading to a loss of \\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eintegrity\u003c/span\u003e\u0026nbsp;or confidentiality, \u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003ewhich may allow chaining to other vulnerabilities.\u003c/span\u003e\\n\\n\u003cbr\u003e\u003cp\u003eThis issue affects Juniper Networks Junos OS on SRX Series:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003e\\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e21.2 versions prior to 21.2R3-S8;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e21.4 \\n\\nversions prior to \\n\\n21.4R3-S6;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e22.1 \\n\\nversions prior to \\n\\n22.1R3-S5;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e22.2 \\n\\nversions prior to \\n\\n22.2R3-S3;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e22.3 \\n\\nversions prior to \\n\\n22.3R3-S2;\u003c/span\u003e\u003c/li\u003e\u003cli\u003e22.4 versions prior to 22,4R2-S2, 22.4R3;\u003c/li\u003e\u003cli\u003e23.2 versions prior to \\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e23.2R1-S2,\u0026nbsp;\u003c/span\u003e23.2R2.\u003c/li\u003e\u003c/ul\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-306\", \"description\": \"CWE-306 Missing Authentication for Critical Function\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \" \\n\\n\\n\\n\\n\\n\\n\\nThe following minimal configuration is necessary:\\n\\n\\u00a0 [system services web-management http]or\\n\\n\\u00a0 [system services web-management https]\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \" \\n\\n\\n\\n\\n\\n\\n\\n\u003cp\u003eThe following minimal configuration is necessary:\u003c/p\u003e\u003ccode\u003e\u0026nbsp; [system services web-management http]\u003c/code\u003e\u003cp\u003eor\u003c/p\u003e\u003ccode\u003e\u0026nbsp; [system services web-management https]\u003c/code\u003e\u003cbr\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2024-01-25T22:36:32.697Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2023-36851\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:05:36.801Z\", \"dateReserved\": \"2023-06-27T16:17:25.277Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2023-09-26T19:53:17.080Z\", \"assignerShortName\": \"juniper\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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