Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required Low
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
User Interaction Required
No CVSS v3.0
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
The EPSS score is 0.0028.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
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Juniper |
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Configuration 1 [-]
AND |
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Source | ID | Title |
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EUVD-2021-18283 | A persistent Cross-Site Scripting (XSS) vulnerability in Juniper Networks Junos OS on SRX Series, J-Web interface may allow a remote authenticated user to inject persistent and malicious scripts. An attacker can exploit this vulnerability to steal sensitive data and credentials from a web administration session, or hijack another user's active session to perform administrative actions. This issue affects: Juniper Networks Junos OS on SRX Series: 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S8; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R2-S1, 20.3R3. |
Solution
The following software releases have been updated to resolve this specific issue: 18.2R3-S8, 18.3R3-S5, 18.4R3-S8, 19.1R3-S5, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R1-S4, 19.4R2-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3, 20.2R3-S1, 20.3R2-S1, 20.3R3, 20.4R1, and all subsequent releases.
Workaround
To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to only trusted administrative networks, hosts and users. Alternatively, J-Web can be disabled.
Link | Providers |
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https://kb.juniper.net/JSA11238 |
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No history.

Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2024-09-16T18:34:02.417Z
Reserved: 2021-04-15T00:00:00
Link: CVE-2021-31373

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Status : Modified
Published: 2021-10-19T19:15:10.400
Modified: 2024-11-21T06:05:32.573
Link: CVE-2021-31373

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