Unauthenticated redirect via improper URL parsing
Published Jan 17, 2022 · Updated Aug 4, 2024
Cross-site scripting in Apache Knox SSO before 1.6.1 allows remote attackers to redirect users to an attacker-controlled page via a crafted request parameter. Knox SSO improperly parses that parameter when constructing the redirect destination, allowing a malicious URL to pass through the redirect flow. Exploitation requires the victim to follow a link delivered through phishing or another XSS path; the reported consequence is redirection and potential script execution in the user’s browser.
Summary
What happened
Cross-site scripting in Apache Knox SSO before 1.6.1 allows remote attackers to redirect users to an attacker-controlled page via a crafted request parameter. Knox SSO improperly parses that parameter when constructing the redirect destination, allowing a malicious URL to pass through the redirect flow. Exploitation requires the victim to follow a link delivered through phishing or another XSS path; the reported consequence is redirection and potential script execution in the user’s browser.
The record
- CVE
- CVE-2021-42357
- Published
- Jan 17, 2022
- Updated
- Aug 4, 2024
- Vendor
- The Apache Software Foundation
- Product
- Apache Knox
- Classifications
- CWE-79, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 17, 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=0.12.0 <Apache Knox 0.x*
- Affected versionversion=Apache Knox 1.x <1.6.1
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo