CVE-2022-23554: Authentication bypass in Alpine
First published: Wed Dec 28 2022(Updated: )
Alpine is a scaffolding library in Java. Alpine prior to version 1.10.4 allows Authentication Filter bypass. The AuthenticationFilter relies on the request URI to evaluate if the user is accessing the swagger endpoint. By accessing a URL with a path such as /api/foo;%2fapi%2fswagger the contains condition will hold and will return from the authentication filter without aborting the request. Note that the principal object will not be assigned and therefore the issue wont allow user impersonation. This issue has been fixed in version 1.10.4. There are no known workarounds.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Alpine Project Alpine | <1.10.4 | |
| maven/us.springett:alpine | <1.10.4 | 1.10.4 |
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Reference Links
- https://github.com/stevespringett/Alpine/blob/f03dbda46229c26145a5f9f7f2660cc2c386be02/alpine/src/main/java/alpine/filters/AuthenticationFilter.java#L58-L60
- https://github.com/stevespringett/Alpine/releases/tag/alpine-parent-1.10.4
- https://securitylab.github.com/advisories/GHSL-2021-1010-Alpine/
- https://nvd.nist.gov/vuln/detail/CVE-2022-23554
- https://securitylab.github.com/advisories
- https://securitylab.github.com/advisories/GHSL-2021-1010-Alpine
- https://github.com/advisories/GHSA-whr2-9x5f-5c79 (Advisory)
Frequently Asked Questions
What is the vulnerability ID of this Alpine vulnerability?
The vulnerability ID is CVE-2022-23554.
What is the severity of CVE-2022-23554?
The severity of CVE-2022-23554 is medium with a CVSS score of 5.4.
What is the affected software of CVE-2022-23554?
The affected software is Alpine prior to version 1.10.4.
How can the Authentication Filter bypass vulnerability be exploited?
The vulnerability can be exploited by accessing a URL with a path that contains specific characters.
How can I fix CVE-2022-23554?
To fix CVE-2022-23554, update Alpine to version 1.10.4 or later.
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