Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2023-1932
CVE-2023-1932:
Java vulnerability analysis and mitigation
Overview
A flaw was discovered in hibernate-validator's 'isValid' method within the org.hibernate.validator.internal.constraintvalidators.hv.SafeHtmlValidator class. The vulnerability allows bypassing validation by omitting the tag ending in a less-than character, potentially enabling HTML injection and Cross-Site-Scripting (XSS) attacks when browsers render the invalid HTML (Red Hat CVE).
Technical details
The vulnerability exists in the SafeHtmlValidator class's 'isValid' method implementation. The validation mechanism can be circumvented by specifically crafting input that omits the tag ending character '<'. This technical flaw has been assigned a CVSS v3.1 base score of 6.1 (Moderate), with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. The vulnerability is classified under CWE-1286 (Improper Validation of Syntactic Correctness of Input) (Red Hat CVE).
Impact
When exploited, this vulnerability can lead to HTML injection and Cross-Site-Scripting (XSS) attacks. The impact is particularly concerning as browsers may still render the invalid HTML, potentially exposing users to malicious content. The vulnerability affects the confidentiality and integrity of the system with low impact, while having no impact on availability (Red Hat CVE).
Mitigation and workarounds
For Red Hat OpenStack Platform 13.0's OpenDaylight (ODL), no fix will be released as ODL is in technical preview. For Satellite 6, while it contains vulnerable versions of hibernate-validator in the candlepin component, the vulnerable SafeHtmlValidator functionality is not in use, making exploitation impossible. The vulnerability has been fixed in hibernate-validator versions 6.2 and 7.0 (Red Hat CVE, Red Hat Bugzilla).
Additional resources
Source: This report was generated using AI
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