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CVE-2021-31810

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1.

Impact

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).

Affected products

VendorProductAffected versions
Ruby-LangRuby
through 2.6.7
from 2.7.0 through 2.7.3
from 3.0.0 through 3.0.1
DebianDebian Linux
Version 9.0
OracleJd Edwards Enterpriseone Tools
before 9.2.6.1

References