6.1med

CVE-2017-7559

Undertow vulnerable to Request Smuggling

Also known as GHSA-rj76-h87p-r3wf

Published 8 y ago · modified 4 mo ago · JSON

CVSS
6.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.9%
percentile 80%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

1.91% probability of exploitation in the next 30 days, higher than 80% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.06.1CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD2.05.8AV:N/AC:M/Au:N/C:P/I:P/A:N
GitHub3.06.1CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

EcosystemPackageAffectedFixed in
mavenio.undertow:undertow-core
>=1.4.0, <1.4.17.Final
>=1.3.0, <1.3.31.Final
>=2.0.0.Alpha1, <2.0.0.Alpha2
1.4.17.Final
1.3.31.Final
2.0.0.Alpha2

Affected products

  • Red Hat, Inc. undertow

Classification

Weakness
  • CWE-444 Inconsistent Interpretation of HTTP Requests

References

  • access.redhat.com /errata/RHSA-2018:1322 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=CVE-2017-7559 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2018:0002 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3458 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • issues.jboss.org /browse/UNDERTOW-1251 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2018:0004 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3455 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3456 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2018:0003 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2018:0005 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:3454 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • nvd.nist.gov /vuln/detail/CVE-2017-7559 · advisory
  • github.com /undertow-io/undertow · package

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.