SB2011031504 - Path traversal in mj2 Majordomo 2

Description

This security bulletin contains information about 1 vulnerability.

1) Path traversal (CVE-ID: CVE-2011-0063)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The _list_file_get function in lib/Majordomo.pm in Majordomo 2 20110203 and earlier allows remote attackers to conduct directory traversal attacks and read arbitrary files via a ./.../ sequence in the "extra" parameter to the help command, which causes the regular expression to produce .. (dot dot) sequences. NOTE: this vulnerability is due to an incomplete fix for CVE-2011-0049.

Remediation

Install update from vendor's website.

References

• http://secunia.com/advisories/43631
• http://securityreason.com/securityalert/8133
• http://sotiriu.de/adv/NSOADV-2011-003.txt
• http://www.securityfocus.com/archive/1/516923/100/0/threaded
• https://bugzilla.mozilla.org/show_bug.cgi?id=631307
• https://exchange.xforce.ibmcloud.com/vulnerabilities/66011