Post-login external redirect via nextUrl validation bypass
Published Aug 23, 2024 · Updated Aug 23, 2024
Open redirect in OpenSearch Dashboards Security Plugin before 1.3.19 and 2.0.0 through 2.15.0 allows remote attackers to redirect users via nextUrl. The server-side validateNextUrl function treated specially formed paths as relative without constraining them to the configured server base path, and authentication routes subsequently used the accepted value as the post-login destination. A victim must follow a crafted link and complete login before the browser is sent to an attacker-chosen external site, enabling trusted-origin phishing without altering the dashboard service.
Summary
What happened
Open redirect in OpenSearch Dashboards Security Plugin before 1.3.19 and 2.0.0 through 2.15.0 allows remote attackers to redirect users via nextUrl. The server-side validateNextUrl function treated specially formed paths as relative without constraining them to the configured server base path, and authentication routes subsequently used the accepted value as the post-login destination. A victim must follow a crafted link and complete login before the browser is sent to an attacker-chosen external site, enabling trusted-origin phishing without altering the dashboard service.
The record
- CVE
- CVE-2024-43794
- Published
- Aug 23, 2024
- Updated
- Aug 23, 2024
- Vendor
- OpenSearch Project
- Product
- OpenSearch Dashboards Security Plugin
- Classifications
- CWE-601, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 23, 2024CVE publishedPublication date reported by the CVE source.
- Aug 23, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 1.3.19
- Affected versionversion=>= 2.0.0, < 2.16.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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