283 software vendors have fixed 921 vulnerabilities in their products thanks to High-Tech Bridge Security Research Lab.
Patch Available Upon Disclosure
|2013 Q4: 67%||2013 Q1: 100%|
|2013 Q3: 77%||2012 Q4: 68%|
|2013 Q2: 92%||2012 Q3: 69%|
Vendor Average Time to Patch
|2013 Q4: 8 days||2013 Q1: 13 days|
|2013 Q3: 13 days||2012 Q4: 26 days|
|2013 Q2: 30 days||2012 Q3: 22 days|
Path Traversal in AWS XMS
|Vulnerable Versions:||2.5 and probably prior|
|Advisory Publication:||March 6, 2013 [without technical details]|
|Vendor Notification:||March 6, 2013|
|Vendor Fix:||March 16, 2013|
|Public Disclosure:||March 27, 2013|
|Latest Update:||March 19, 2013|
|Vulnerability Type:||Path Traversal [CWE-22]|
|CVSSv2 Base Score:||5 (AV:N/AC:L/Au:N/C:P/I:N/A:N)|
|Solution Status:||Fixed by Vendor|
|Discovered and Provided:||High-Tech Bridge Security Research Lab|
High-Tech Bridge Security Research Lab discovered path traversal vulnerability in AWS XMS, which can be exploited to read contents of arbitrary files.
The vulnerability exists due to insufficient filtration of "what" HTTP GET parameter passed to "/importer.php" script before using it in PHP "file()" function. A remote attacker can read contents of arbitrary files on the target system.
The following PoC (Proof of Concept) code uses wget utility to download source code of "/default.php" file, which contains application configuration data and administrator’s credentials:
To bypass protections against NULL-byte injection (implemented in PHP 5.3.4 and later versions) or enabled "magic_quotes_gpc", alternative techniques based on path normalization and length restrictions can be used.
The second PoC code uses a large amount of '/' symbols (4096 is sufficient for the majority of platforms) to bypass the restrictions and get source code of the "/default.php" file:
|Upgrade to AWS XMS 2.6|
| High-Tech Bridge Advisory HTB23147 - https://www.htbridge.com/advisory/HTB23147 - Path Traversal in AWS XMS.|
 AWS XMS - http://www.aws-dms.com/ - XMS is an online visual web development enviroment and framework, providing a web application base, with multi language support, based on XML.
 Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
 Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
Please feel free to send us any additional information related to this Advisory, such as vulnerable versions, additional exploitation details and conditions, patches and other relevant details.