Open Text FirstClass Client 'FCP://' URI and DLL Loading Arbitrary Code Execution Vulnerabilities
BID:47347
Info
Open Text FirstClass Client 'FCP://' URI and DLL Loading Arbitrary Code Execution Vulnerabilities
| Bugtraq ID: | 47347 |
| Class: | Design Error |
| CVE: | |
| Remote: | Yes |
| Local: | No |
| Published: | Apr 13 2011 12:00AM |
| Updated: | Apr 13 2011 12:00AM |
| Credit: | Kyle Ossinger, Mister Teatime |
| Vulnerable: |
Open Text Corporation FirstClass Client 11.005 |
| Not Vulnerable: | |
Discussion
Open Text FirstClass Client 'FCP://' URI and DLL Loading Arbitrary Code Execution Vulnerabilities
Open Text FirstClass Client is prone to multiple arbitrary-code-execution vulnerabilities, including a 'FCP://' URI-handling issue and a DLL-loading issue.
An attacker can exploit the 'FCP://' URI issue by enticing an unsuspecting user to follow a malicious URI.
An attacker can exploit the DLL loading issue by enticing a legitimate user to use the vulnerable application to open a file from a network share location that contains a specially crafted Dynamic Link Library (DLL) file.
FirstClass Client 11.005 is vulnerable; other versions may also be affected.
Open Text FirstClass Client is prone to multiple arbitrary-code-execution vulnerabilities, including a 'FCP://' URI-handling issue and a DLL-loading issue.
An attacker can exploit the 'FCP://' URI issue by enticing an unsuspecting user to follow a malicious URI.
An attacker can exploit the DLL loading issue by enticing a legitimate user to use the vulnerable application to open a file from a network share location that contains a specially crafted Dynamic Link Library (DLL) file.
FirstClass Client 11.005 is vulnerable; other versions may also be affected.
Exploit / POC
Open Text FirstClass Client 'FCP://' URI and DLL Loading Arbitrary Code Execution Vulnerabilities
For the DLL loading issue, a general exploit technique has been documented by TheLeader and H.D. Moore for the Metasploit Project; please see the references for more information. For the 'FCP://' URI issue, an attacker must entice an unsuspecting user into following a malicious URI.
For the DLL loading issue, a general exploit technique has been documented by TheLeader and H.D. Moore for the Metasploit Project; please see the references for more information. For the 'FCP://' URI issue, an attacker must entice an unsuspecting user into following a malicious URI.
Solution / Fix
Open Text FirstClass Client 'FCP://' URI and DLL Loading Arbitrary Code Execution Vulnerabilities
Solution:
Currently, we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].
Solution:
Currently, we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].
References
Open Text FirstClass Client 'FCP://' URI and DLL Loading Arbitrary Code Execution Vulnerabilities
References:
References:
- Application DLL Load Hijacking (HD Moore)
- Exploiting DLL Hijacking Flaws (hdm)
- FirstClass Homepage (Open Text Corporation)
- Microsoft Security Advisory 2269637 Released (Microsoft)
- More information about the DLL Preloading remote attack vector (Microsoft)
- Microsoft Security Advisory (2269637) (Microsoft)