ReadyDesk, version 9.1 and possibly others, contains SQL injection, path traversal, hard-coded cryptographic key, and arbitrary file upload vulnerabilities that may be leveraged to expose sensitive data and execute arbitrary code in the context of the vulnerable software.
ReadyDesk is a help desk ticketing web application designed to facilitate business internal or business to customer interactions.
CWE-89: Improper Neutralization of Special Elements used in a SQL Command ('SQL Injection') - CVE-2016-5048
The user name field of
http://<IP>/readydesk/chat/staff/default.aspx fails to properly escape single quote characters, or
', provided as field input. Through error-based, blind SQL injection attacks, a remote, unauthenticated attacker may obtain full database contents, including user passwords which are stored as SHA1 hashes.
CWE-22: Improper Limitation of a Pathname to a Restricted Directory - CVE-2016-5049
SESID parameter of requests to
http://<IP>/readydesk/chat/openattach.aspx is vulnerable to directory traversal and may be exploited to read arbitrary files on affected systems when combined with the
FNAME parameter. For instance, to download
SQL_Config.aspx, an attacker would make a request to:
CWE-321: Use of Hard-coded Cryptographic Key - CVE-2016-5683
SQL Server user credentials stored in
SQL_Config.aspx are encrypted using a hard-coded cryptographic key found in
ReadyDesk.dll. An attacker capable of obtaining the encrypted password can easily decrypt it for use in further attacks.
CWE-434: Unrestricted Upload of File with Dangerous Type - CVE-2016-5050
Files uploaded via
http://<IP>/readydesk/chat/sendfile.aspx are not properly validated, allowing for arbitrary upload of files with a dangerous type. A remote, unauthenticated attacker could execute arbitrary code by uploading and making a request to a specially crafted aspx page.
The CVE score below describes CVE-2016-5050.
A remote, unauthenticated attacker can obtain sensitive database information, read arbitrary files, and execute arbitrary code in the context of the vulnerable software.
The CERT/CC is currently unaware of a practical solution to these problems. A vendor advisory for version 9.2 states that it contains "Critical Security Updates," though details are not provided and it is unknown whether any of the vulnerabilities described above are addressed.
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Notified: June 20, 2016 Updated: August 09, 2016
We have not received a statement from the vendor.
We are not aware of further vendor information regarding this vulnerability.
Group | Score | Vector
Base | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P
Temporal | 6.4 | E:POC/RL:U/RC:UR
Environmental | 4.8 | CDP:ND/TD:M/CR:ND/IR:ND/AR:ND
Thanks to Andrew Tierney of Pen Test Partners for reporting these vulnerabilities.
This document was written by Joel Land.
CVE IDs: | CVE-2016-5048, CVE-2016-5049, CVE-2016-5683, CVE-2016-5050
Date Public: | 2016-08-16
Date First Published: | 2016-08-16
Date Last Updated: | 2016-08-16 13:59 UTC
Document Revision: | 21