ID CVE-2011-0063
Summary 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.
References
Vulnerable Configurations
  • cpe:2.3:a:mj2:majordomo_2:20110101
    cpe:2.3:a:mj2:majordomo_2:20110101
  • cpe:2.3:a:mj2:majordomo_2:20110102
    cpe:2.3:a:mj2:majordomo_2:20110102
  • cpe:2.3:a:mj2:majordomo_2:20110103
    cpe:2.3:a:mj2:majordomo_2:20110103
  • cpe:2.3:a:mj2:majordomo_2:20110104
    cpe:2.3:a:mj2:majordomo_2:20110104
  • cpe:2.3:a:mj2:majordomo_2:20110105
    cpe:2.3:a:mj2:majordomo_2:20110105
  • cpe:2.3:a:mj2:majordomo_2:20110106
    cpe:2.3:a:mj2:majordomo_2:20110106
  • cpe:2.3:a:mj2:majordomo_2:20110107
    cpe:2.3:a:mj2:majordomo_2:20110107
  • cpe:2.3:a:mj2:majordomo_2:20110108
    cpe:2.3:a:mj2:majordomo_2:20110108
  • cpe:2.3:a:mj2:majordomo_2:20110109
    cpe:2.3:a:mj2:majordomo_2:20110109
  • cpe:2.3:a:mj2:majordomo_2:20110110
    cpe:2.3:a:mj2:majordomo_2:20110110
  • cpe:2.3:a:mj2:majordomo_2:20110111
    cpe:2.3:a:mj2:majordomo_2:20110111
  • cpe:2.3:a:mj2:majordomo_2:20110112
    cpe:2.3:a:mj2:majordomo_2:20110112
  • cpe:2.3:a:mj2:majordomo_2:20110113
    cpe:2.3:a:mj2:majordomo_2:20110113
  • cpe:2.3:a:mj2:majordomo_2:20110114
    cpe:2.3:a:mj2:majordomo_2:20110114
  • cpe:2.3:a:mj2:majordomo_2:20110115
    cpe:2.3:a:mj2:majordomo_2:20110115
  • cpe:2.3:a:mj2:majordomo_2:20110116
    cpe:2.3:a:mj2:majordomo_2:20110116
  • cpe:2.3:a:mj2:majordomo_2:20110117
    cpe:2.3:a:mj2:majordomo_2:20110117
  • cpe:2.3:a:mj2:majordomo_2:20110118
    cpe:2.3:a:mj2:majordomo_2:20110118
  • cpe:2.3:a:mj2:majordomo_2:20110119
    cpe:2.3:a:mj2:majordomo_2:20110119
  • cpe:2.3:a:mj2:majordomo_2:20110120
    cpe:2.3:a:mj2:majordomo_2:20110120
  • cpe:2.3:a:mj2:majordomo_2:20110121
    cpe:2.3:a:mj2:majordomo_2:20110121
  • cpe:2.3:a:mj2:majordomo_2:20110122
    cpe:2.3:a:mj2:majordomo_2:20110122
  • cpe:2.3:a:mj2:majordomo_2:20110123
    cpe:2.3:a:mj2:majordomo_2:20110123
  • cpe:2.3:a:mj2:majordomo_2:20110124
    cpe:2.3:a:mj2:majordomo_2:20110124
  • cpe:2.3:a:mj2:majordomo_2:20110125
    cpe:2.3:a:mj2:majordomo_2:20110125
  • cpe:2.3:a:mj2:majordomo_2:20110126
    cpe:2.3:a:mj2:majordomo_2:20110126
  • cpe:2.3:a:mj2:majordomo_2:20110127
    cpe:2.3:a:mj2:majordomo_2:20110127
  • cpe:2.3:a:mj2:majordomo_2:20110128
    cpe:2.3:a:mj2:majordomo_2:20110128
  • cpe:2.3:a:mj2:majordomo_2:20110129
    cpe:2.3:a:mj2:majordomo_2:20110129
  • cpe:2.3:a:mj2:majordomo_2:20110130
    cpe:2.3:a:mj2:majordomo_2:20110130
  • cpe:2.3:a:mj2:majordomo_2:20110131
    cpe:2.3:a:mj2:majordomo_2:20110131
  • cpe:2.3:a:mj2:majordomo_2:20110201
    cpe:2.3:a:mj2:majordomo_2:20110201
  • cpe:2.3:a:mj2:majordomo_2:20110202
    cpe:2.3:a:mj2:majordomo_2:20110202
  • cpe:2.3:a:mj2:majordomo_2:20110203
    cpe:2.3:a:mj2:majordomo_2:20110203
CVSS
Base: 5.0 (as of 15-03-2011 - 14:51)
Impact:
Exploitability:
CWE CWE-22
CAPEC
  • Relative Path Traversal
    An attacker exploits a weakness in input validation on the target by supplying a specially constructed path utilizing dot and slash characters for the purpose of obtaining access to arbitrary files or resources. An attacker modifies a known path on the target in order to reach material that is not available through intended channels. These attacks normally involve adding additional path separators (/ or \) and/or dots (.), or encodings thereof, in various combinations in order to reach parent directories or entirely separate trees of the target's directory structure.
  • Directory Traversal
    An attacker with access to file system resources, either directly or via application logic, will use various file path specification or navigation mechanisms such as ".." in path strings and absolute paths to extend their range of access to inappropriate areas of the file system. The attacker attempts to either explore the file system for recon purposes or access directories and files that are intended to be restricted from their access. Exploring the file system can be achieved through constructing paths presented to directory listing programs, such as "ls" and 'dir', or through specially crafted programs that attempt to explore the file system. The attacker engaging in this type of activity is searching for information that can be used later in a more exploitive attack. Access to restricted directories or files can be achieved through modification of path references utilized by system applications.
  • File System Function Injection, Content Based
    An attack of this type exploits the host's trust in executing remote content including binary files. The files are poisoned with a malicious payload (targeting the file systems accessible by the target software) by the attacker and may be passed through standard channels such as via email, and standard web content like PDF and multimedia files. The attacker exploits known vulnerabilities or handling routines in the target processes. Vulnerabilities of this type have been found in a wide variety of commercial applications from Microsoft Office to Adobe Acrobat and Apple Safari web browser. When the attacker knows the standard handling routines and can identify vulnerabilities and entry points they can be exploited by otherwise seemingly normal content. Once the attack is executed, the attackers' program can access relative directories such as C:\Program Files or other standard system directories to launch further attacks. In a worst case scenario, these programs are combined with other propagation logic and work as a virus.
  • Using Slashes and URL Encoding Combined to Bypass Validation Logic
    This attack targets the encoding of the URL combined with the encoding of the slash characters. An attacker can take advantage of the multiple way of encoding an URL and abuse the interpretation of the URL. An URL may contain special character that need special syntax handling in order to be interpreted. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE). For instance US-ASCII space character would be represented with %20. This is often referred as escaped ending or percent-encoding. Since the server decodes the URL from the requests, it may restrict the access to some URL paths by validating and filtering out the URL requests it received. An attacker will try to craft an URL with a sequence of special characters which once interpreted by the server will be equivalent to a forbidden URL. It can be difficult to protect against this attack since the URL can contain other format of encoding such as UTF-8 encoding, Unicode-encoding, etc.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
  • Using Escaped Slashes in Alternate Encoding
    This attack targets the use of the backslash in alternate encoding. An attacker can provide a backslash as a leading character and causes a parser to believe that the next character is special. This is called an escape. By using that trick, the attacker tries to exploit alternate ways to encode the same character which leads to filter problems and opens avenues to attack.
  • Using Slashes in Alternate Encoding
    This attack targets the encoding of the Slash characters. An attacker would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the attacker many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
d2sec via4
name Majordomo 2 File Disclosure
url http://www.d2sec.com/exploits/majordomo_2_file_disclosure.html
exploit-db via4
description Majordomo2 - Directory Traversal (SMTP/HTTP). CVE-2011-0049,CVE-2011-0063. Remote exploits for multiple platform
file exploits/multiple/remote/16103.txt
id EDB-ID:16103
last seen 2016-02-01
modified 2011-02-03
platform multiple
port
published 2011-02-03
reporter Michael Brooks
source https://www.exploit-db.com/download/16103/
title Majordomo2 - Directory Traversal SMTP/HTTP
type remote
metasploit via4
description This module exploits a directory traversal vulnerability present in the _list_file_get() function of Majordomo2 (help function). By default, this module will attempt to download the Majordomo config.pl file.
id MSF:AUXILIARY/SCANNER/HTTP/MAJORDOMO2_DIRECTORY_TRAVERSAL
last seen 2019-02-15
modified 2017-07-24
published 2011-03-12
reliability Normal
reporter Rapid7
source https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/http/majordomo2_directory_traversal.rb
title Majordomo2 _list_file_get() Directory Traversal
nessus via4
NASL family CGI abuses
NASL id MAJORDOMO2_DIR_TRAVERSAL.NASL
description The version of Majordomo 2 on the remote host fails to sanitize input to the 'extra' parameter of the 'mj_wwwusr' script before using it to return the contents of a file. An attacker can leverage this issue using a directory traversal sequence to view arbitrary files on the affected host within the context of the web server. Information harvested may aid in launching further attacks. Note that this issue is also reportedly exploitable through Majordomo's email interface, although Nessus has not checked for that.
last seen 2019-02-21
modified 2018-11-15
plugin id 52000
published 2011-02-16
reporter Tenable
source https://www.tenable.com/plugins/index.php?view=single&id=52000
title Majordomo 2 _list_file_get() Function Traversal Arbitrary File Access
packetstorm via4
data source https://packetstormsecurity.com/files/download/99093/NSOADV-2011-003.txt
id PACKETSTORM:99093
last seen 2016-12-05
published 2011-03-08
reporter Nikolas Sotiriu
source https://packetstormsecurity.com/files/99093/Majordomo2-Directory-Traversal.html
title Majordomo2 Directory Traversal
refmap via4
bugtraq 20110308 NSOADV-2011-003: Majordomo2 'help' Command Directory Traversal (Patch Bypass)
confirm https://bugzilla.mozilla.org/show_bug.cgi?id=631307
misc http://sotiriu.de/adv/NSOADV-2011-003.txt
secunia 43631
sreason 8133
xf majordomo-listfileget-dir-traversal(66011)
Last major update 21-09-2011 - 23:27
Published 15-03-2011 - 13:55
Last modified 10-10-2018 - 16:09
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