CVE-2011-2523
CriticalPublished
vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.
- Published
- Nov 27, 2019
- Updated
- Aug 6, 2024
- Assigning CNA
- redhat
- Evidence observed
- Jul 5, 2011
Primary CVSS
9.8/ 10Critical
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H96.2%
High · next 30 days
- Percentile
- 99.9%
- Model date
- Oct 12, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.
Sources
Repository evidence: Files: 2 · Repositories: 2
1 Module1 Template
modules/exploits/unix/ftp/vsftpd_234_backdoor.rb
Metasploit Framework modulesDeclared conditions
- platform: Linux,Unix($.exploit_unix/ftp/vsftpd_234_backdoor.platform)
- verification: check_declared($.exploit_unix/ftp/vsftpd_234_backdoor.check)
network/cves/2011/CVE-2011-2523.yaml
Nuclei TemplatesDeclared conditions
- network: tcp($.protocol_keys)
- verification: regex($.matchers[*].type)
Responsible use
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