SARA / Free Tools / CVE / CVE-2017-7559

CVE-2017-7559 — In Undertow 2

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

CVSS
— —
EPSS
1.13% (top 21.90%)
CWE
CWE-444
Published
2018-01-10T15:00:00.000Z
Last modified
2024-09-16T19:56:46.618Z
CVSS vector
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01What is this vulnerability?

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…

02Affected products

VendorProductVersions
Red Hat, Inc.undertow2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, 1.3.x before 1.3.31.Final

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

CVE-2017-2666
Cited in vendor advisory

08Timeline

09References

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