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CVE-2011-2523

critical

Description

vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.

References

https://www.openwall.com/lists/oss-security/2011/07/11/5

https://vigilance.fr/vulnerability/vsftpd-backdoor-in-version-2-3-4-10805

https://security-tracker.debian.org/tracker/CVE-2011-2523

https://access.redhat.com/security/cve/cve-2011-2523

http://packetstormsecurity.com/files/162145/vsftpd-2.3.4-Backdoor-Command-Execution.html

Details

Source: Mitre, NVD

Published: 2019-11-27

Updated: 2021-04-12

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.94261