Credentialed requests via reflected Origin
Published Jan 6, 2022 · Updated Aug 4, 2024
CORS misconfiguration in Apache Kylin 2.6.6 and earlier, 3.1.2 and earlier, and 4.0.0 lets remote attackers send credentialed cross-origin requests. The CORS filter reflects any supplied Origin and enables Access-Control-Allow-Credentials, so a browser can attach a logged-in user’s cookies or authorization context. Exploitation requires a Kylin user to visit attacker-controlled web content, and can expose or alter operations available to that account.
Summary
What happened
CORS misconfiguration in Apache Kylin 2.6.6 and earlier, 3.1.2 and earlier, and 4.0.0 lets remote attackers send credentialed cross-origin requests. The CORS filter reflects any supplied Origin and enables Access-Control-Allow-Credentials, so a browser can attach a logged-in user’s cookies or authorization context. Exploitation requires a Kylin user to visit attacker-controlled web content, and can expose or alter operations available to that account.
The record
- CVE
- CVE-2021-45457
- Published
- Jan 6, 2022
- Updated
- Aug 4, 2024
- Vendor
- The Apache Software Foundation
- Product
- Apache Kylin
- Classifications
- CWE-863, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 6, 2022CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Apache Kylin 2 <=2.6.6
- Affected versionversion=Apache Kylin 3 <=3.1.2
- Affected versionversion=Apache Kylin 4 <=4.0.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- GHSL-2021-1049 credentialed CORS proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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