10 High
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.954 High
EPSS
Percentile
99.4%
According to its banner, the installed version of Serv-U is earlier than 9.1.0.0, and therefore affected by the following issues :
A boundary error in the web administration interface when parsing session cookies can result in a stack-based buffer overflow. (CVE-2009-4873)
A boundary error in the TEA decoding algorithm can result in a stack-based buffer overflow when processing a long hexadecimal string. (CVE-2009-4006)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(42934);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");
script_cve_id("CVE-2009-4006", "CVE-2009-4873");
script_bugtraq_id(36895, 37051);
script_xref(name:"SECUNIA", value:"37228");
script_name(english:"Serv-U < 9.1.0.0");
script_set_attribute(attribute:"synopsis", value:
"The remote FTP server is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"According to its banner, the installed version of Serv-U is earlier
than 9.1.0.0, and therefore affected by the following issues :
- A boundary error in the web administration interface
when parsing session cookies can result in a stack-based
buffer overflow. (CVE-2009-4873)
- A boundary error in the TEA decoding algorithm can
result in a stack-based buffer overflow when processing
a long hexadecimal string. (CVE-2009-4006)");
script_set_attribute(attribute:"see_also", value:"http://www.rangos.de/ServU-ADV.txt");
script_set_attribute(attribute:"see_also", value:"https://secuniaresearch.flexerasoftware.com/secunia_research/2009-46/");
script_set_attribute(attribute:"see_also", value:"https://support.solarwinds.com/Success_Center/Serv-U_Managed_File_Transfer_Serv-U_FTP_Server/Serv-U_Documentation/release_notes");
script_set_attribute(attribute:"solution", value:
"Upgrade to Serv-U version 9.1.0.0 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
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:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Rhinosoft Serv-U Session Cookie Buffer Overflow');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_cwe_id(119);
script_set_attribute(attribute:"vuln_publication_date", value:"2009/11/17");
script_set_attribute(attribute:"patch_publication_date", value:"2009/11/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2009/11/30");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:serv-u:serv-u");
script_set_attribute(attribute:"thorough_tests", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"FTP");
script_copyright(english:"This script is Copyright (C) 2009-2022 Tenable Network Security, Inc.");
script_dependencies("servu_version.nasl");
script_require_keys("ftp/servu");
script_require_ports("Services/ftp", 21);
exit(0);
}
include("global_settings.inc");
include("misc_func.inc");
include("ftp_func.inc");
port = get_ftp_port(default:21);
version = get_kb_item_or_exit('ftp/'+port+'/servu/version');
source = get_kb_item_or_exit('ftp/'+port+'/servu/source');
if (
version =~ "^[6-9]\." &&
ver_compare(ver: version , fix: '9.1', strict: FALSE) == -1
)
{
if (report_verbosity > 0)
{
report =
'\n Version source : ' + source +
'\n Installed version : ' + version +
'\n Fixed version : 9.1.0.0' +
'\n';
security_hole(port: port, extra: report);
}
else security_hole(port);
}
else exit(0, "The Serv-U version "+version+" install listening on port "+port+" is not affected.");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4006
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4873
www.rangos.de/ServU-ADV.txt
secuniaresearch.flexerasoftware.com/secunia_research/2009-46/
support.solarwinds.com/Success_Center/Serv-U_Managed_File_Transfer_Serv-U_FTP_Server/Serv-U_Documentation/release_notes