Majordomo 2 is a software widely used for managing electronic mailing lists. With Majordomo 2, a user can create, configure and administer email lists, allowing users to send messages to each other without having to send individual emails. This software is typically used in organizations that require communication among members, such as companies, academic institutions, and communities.
The CVE-2011-0049 vulnerability is a directory traversal flaw in the Majordomo 2 software. It occurs in the _list_file_get function in lib/Majordomo.pm. This vulnerability allows a remote attacker to gain access to files that they should not have access to, by using ".." sequences in the help command. This vulnerability can be exploited through a crafted email or through the web interface, more specifically through the cgi-bin/mj_wwwusr.
This vulnerability can lead to serious consequences if it is exploited. It could allow an attacker to read sensitive information stored on the system, such as passwords, confidential emails, and other personal information. Furthermore, an attacker could use the information obtained through this vulnerability to carry out more complex attacks, such as social engineering or spear-phishing.
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REFERENCES
- http://securityreason.com/securityalert/8061
- http://www.exploit-db.com/exploits/16103
- http://www.kb.cert.org/vuls/id/363726
- http://www.securityfocus.com/archive/1/516150/100/0/threaded
- http://www.securityfocus.com/bid/46127
- http://www.securitytracker.com/id?1025024
- http://www.vupen.com/english/advisories/2011/0288
- https://bug628064.bugzilla.mozilla.org/attachment.cgi?id=506481
- https://bugzilla.mozilla.org/show_bug.cgi?id=628064
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65113
- https://sitewat.ch/en/Advisory/View/1
To protect against this vulnerability, the following precautions can be taken:
- Update the Majordomo 2 software to the latest version to ensure that the vulnerability has been patched.
- Add restrictions to the web interface to prevent unauthorized access.
- Configure the system to reject email commands containing ".." sequences in the help command.
- Monitor logs and system activity to detect any suspicious activity.
- Use an intrusion detection system (IDS) to detect and prevent attacks against the system.
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