CVE-2020-8284

LowCVSS 3.7/10Last modified Oct 14, 2026

Description

A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.

Metrics

CVSS 3.1 3.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Dec 14, 2020
Last modified
Oct 14, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-82857.5curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing.CVE-2020-82867.5curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP responCVE-2020-82876.5Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 allow two copies of a header field in an HTTP request (for example, two Transfer-ECVE-2020-82885.4The `specializedRendering` function in Rocket.Chat server before 3.9.2 allows a cross-site scripting (XSS) vulnerability by way of the `valuCVE-2020-82897.8Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit` CVE-2020-82907.8Backblaze for Windows and Backblaze for macOS before 7.0.0.439 suffer from improper privilege management in `bztransmit` helper due to lack CVE-2020-82916.1A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.CVE-2020-82925.4Rocket.Chat server before 3.9.0 is vulnerable to a self cross-site scripting (XSS) vulnerability via the drag & drop functionality in messagCVE-2020-82936.5A missing input validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows users to store unlimited data in workflow rules causingCVE-2020-82945.4A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet ExplorerCVE-2020-82957.5A wrong check in Nextcloud Server 19 and prior allowed to perform a denial of service attack when resetting the password for a user.CVE-2020-82966.7Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured.
CVE-2020-8284: Low severity, CVSS 3.7 | Vulnix