Vulnerability Description
vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vsftpd Project | Vsftpd | 2.3.4 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/162145/vsftpd-2.3.4-Backdoor-Command-Execut
- https://access.redhat.com/security/cve/cve-2011-2523Third Party Advisory
- https://packetstormsecurity.com/files/102745/VSFTPD-2.3.4-Backdoor-Command-ExecuExploitThird Party AdvisoryVDB Entry
- https://security-tracker.debian.org/tracker/CVE-2011-2523Third Party Advisory
- https://vigilance.fr/vulnerability/vsftpd-backdoor-in-version-2-3-4-10805Third Party Advisory
- https://www.openwall.com/lists/oss-security/2011/07/11/5Mailing ListThird Party Advisory
- http://packetstormsecurity.com/files/162145/vsftpd-2.3.4-Backdoor-Command-Execut
- https://access.redhat.com/security/cve/cve-2011-2523Third Party Advisory
- https://packetstormsecurity.com/files/102745/VSFTPD-2.3.4-Backdoor-Command-ExecuExploitThird Party AdvisoryVDB Entry
- https://security-tracker.debian.org/tracker/CVE-2011-2523Third Party Advisory
- https://vigilance.fr/vulnerability/vsftpd-backdoor-in-version-2-3-4-10805Third Party Advisory
- https://www.openwall.com/lists/oss-security/2011/07/11/5Mailing ListThird Party Advisory
FAQ
What is CVE-2011-2523?
CVE-2011-2523 is a vulnerability with a CVSS score of 9.8 (CRITICAL). vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.
How severe is CVE-2011-2523?
CVE-2011-2523 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2011-2523?
Check the references section above for vendor advisories and patch information. Affected products include: Vsftpd Project Vsftpd, Debian Debian Linux.