In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x...
Vulnerability Description
In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://access.redhat.com/errata/RHSA-2018:1322
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7559
- https://access.redhat.com/errata/RHSA-2018:0002
- https://access.redhat.com/errata/RHSA-2017:3458
- https://issues.jboss.org/browse/UNDERTOW-1251
- https://access.redhat.com/errata/RHSA-2018:0004
- https://access.redhat.com/errata/RHSA-2017:3455
- https://access.redhat.com/errata/RHSA-2017:3456
- https://access.redhat.com/errata/RHSA-2018:0003
- https://access.redhat.com/errata/RHSA-2018:0005
- https://access.redhat.com/errata/RHSA-2017:3454
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