Improper Input Validation Affecting ruby-libs package, versions <0:2.0.0.648-33.el7_4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
35.25% (98th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL7-RUBYLIBS-5202865
  • published26 Jul 2021
  • disclosed14 Dec 2017

Introduced: 14 Dec 2017

CVE-2017-17405  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:7 ruby-libs to version 0:2.0.0.648-33.el7_4 or higher.
This issue was patched in RHSA-2018:0378.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-libs package and not the ruby-libs package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution.