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Cross-site Scripting (XSS) Affecting ruby-rack package, versions <1.6.4-4+deb9u1

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-DEBIAN9-RUBYRACK-322152
  • published2 Dec 2018
  • disclosed13 Nov 2018
Report a new vulnerability Found a mistake?

Introduced: 13 Nov 2018

CVE-2018-16471  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Debian:9 ruby-rack to version 1.6.4-4+deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-rack package and not the ruby-rack package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11. Carefully crafted requests can impact the data returned by the scheme method on Rack::Request. Applications that expect the scheme to be limited to 'http' or 'https' and do not escape the return value could be vulnerable to an XSS attack. Note that applications using the normal escaping mechanisms provided by Rails may not impacted, but applications that bypass the escaping mechanisms, or do not use them may be vulnerable.