Accellion File Transfer Appliance prior FTA_9_11_210 Cookie template statecode path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Accellion File Transfer Appliance. It has been rated as critical. This impacts the function template of the component Cookie Handler. This manipulation of the argument statecode with the input .. causes path traversal. This vulnerability is handled as CVE-2015-2856. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Accellion File Transfer Appliance (File Transfer Software). It has been declared as critical. Affected by this vulnerability is the function template of the component Cookie Handler. The manipulation of the argument statecode with the input value .. leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. The summary by CVE is:

Directory traversal vulnerability in the template function in function.inc in Accellion File Transfer Appliance devices before FTA_9_11_210 allows remote attackers to read arbitrary files via a .. (dot dot) in the statecode cookie.

The bug was discovered 04/03/2015. The weakness was released 10/10/2017 (Website). It is possible to read the advisory at rapid7.com. This vulnerability is known as CVE-2015-2856 since 04/03/2015. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 52 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 85006 (Accellion Secure File Transfer Appliance 'statecode' Cookie Remote File Disclosure), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11539 (Accellion File Transfer Appliance Multiple Vulnerabilities).

Upgrading to version FTA_9_11_210 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (85006). Entry connected to this vulnerability is available at VDB-105637. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 85006
Nessus Name: Accellion Secure File Transfer Appliance 'statecode' Cookie Remote File Disclosure
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 100942
OpenVAS Name: Accellion FTA File Disclosure Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: accellion_fta_statecode_file_read.rb
MetaSploit Name: Accellion FTA statecode Cookie Arbitrary File Read
MetaSploit File: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: File Transfer Appliance FTA_9_11_210

Timelineinfo

04/03/2015 🔍
04/03/2015 +0 days 🔍
05/25/2015 +52 days 🔍
07/27/2015 +63 days 🔍
10/10/2017 +806 days 🔍
10/10/2017 +0 days 🔍
10/11/2017 +1 days 🔍
11/23/2019 +773 days 🔍

Sourcesinfo

Advisory: rapid7.com
Status: Not defined

CVE: CVE-2015-2856 (🔍)
GCVE (CVE): GCVE-0-2015-2856
GCVE (VulDB): GCVE-100-107611
See also: 🔍

Entryinfo

Created: 10/11/2017 10:08
Updated: 11/23/2019 08:44
Changes: 10/11/2017 10:08 (78), 11/23/2019 08:44 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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