Vulnerabilities > CVE-2023-50712 - Improper Neutralization of Alternate XSS Syntax vulnerability in Dfir-Iris Iris

047910
CVSS 5.4 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
LOW
Integrity impact
LOW
Availability impact
NONE
network
low complexity
dfir-iris
CWE-87

Summary

Iris is a web collaborative platform aiming to help incident responders sharing technical details during investigations. A stored Cross-Site Scripting (XSS) vulnerability has been identified in iris-web, affecting multiple locations in versions prior to v2.3.7. The vulnerability may allow an attacker to inject malicious scripts into the application, which could then be executed when a user visits the affected locations. This could lead to unauthorized access, data theft, or other related malicious activities. An attacker need to be authenticated on the application to exploit this vulnerability. The issue is fixed in version v2.3.7 of iris-web. No known workarounds are available.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Cross-Site Scripting Using Alternate Syntax
    The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.