CVE-2021-31810
Medium
Description
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).
SeverityMedium
CVSS5.8
Exploit probability—
Product
Ruby
PublishedJul 13, 2021
First seenJul 13, 2021
How to fix
Update
- oracle jd_edwards_enterpriseone_tools9.2.6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ruby-lang ruby | v ≤ 2.6.7, 2.7.0 ≤ v ≤ 2.7.3, 3.0.0 ≤ v ≤ 3.0.1 | — |
| debian debian_linux | 9.0 | — |
| oracle jd_edwards_enterpriseone_tools | v < 9.2.6.1 | 9.2.6.1 |
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