CVE-2011-2523: OS Command Injection
First published: Wed Nov 27 2019(Updated: )
vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Vsftpd Project Vsftpd | =2.3.4 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| debian/vsftpd | 3.0.3-12 3.0.3-13 3.0.3-13.1 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2011-2523
- https://www.openwall.com/lists/oss-security/2011/07/11/5
- https://vigilance.fr/vulnerability/vsftpd-backdoor-in-version-2-3-4-10805
- https://packetstormsecurity.com/files/102745/VSFTPD-2.3.4-Backdoor-Command-Execution.html
- https://access.redhat.com/security/cve/cve-2011-2523
- http://packetstormsecurity.com/files/162145/vsftpd-2.3.4-Backdoor-Command-Execution.html
Frequently Asked Questions
What is CVE-2011-2523?
CVE-2011-2523 is a vulnerability in vsftpd 2.3.4 that contains a backdoor which opens a shell on port 6200/tcp.
What is the severity of CVE-2011-2523?
The severity of CVE-2011-2523 is critical, with a severity value of 9.8.
Which software versions are affected by CVE-2011-2523?
vsftpd 2.3.4 and Debian Linux versions 8.0, 9.0, and 10.0 are affected by CVE-2011-2523.
How do I fix CVE-2011-2523 in vsftpd?
To fix CVE-2011-2523 in vsftpd, update to version 3.0.3-12 or 3.0.3-13.
Where can I get more information about CVE-2011-2523?
You can get more information about CVE-2011-2523 from the following sources: [link1](https://security-tracker.debian.org/tracker/CVE-2011-2523), [link2](https://www.openwall.com/lists/oss-security/2011/07/11/5), [link3](https://vigilance.fr/vulnerability/vsftpd-backdoor-in-version-2-3-4-10805).
- collector/nvd-historical
- collector/nvd-index
- agent/type
- agent/references
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/last-modified-date
- agent/description
- agent/severity
- agent/author
- agent/event
- agent/tags
- agent/first-publish-date
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- vendor/vsftpd project
- canonical/vsftpd project vsftpd
- version/vsftpd project vsftpd/2.3.4
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- version/debian debian linux/10.0
- package-manager/debian