Description
Heap-based buffer overflow in the SendChannelData function in wfica.ocx in Citrix Presentation Server Client before 9.230 for Windows allows remote malicious web sites to execute arbitrary code via a DataSize parameter that is less than the length of the Data buffer.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Citrix Presentation Server Client - 'WFICA.OCX' ActiveX Heap Buffer Overflow EDB-5106 · remote · Feb 12, 2008 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 23246 third-party-advisory
- 1995 third-party-advisory
- ADV-2006-4865 vdb-entry
- citrix-wfica-bo(30740) vdb-entry
- 21458 vdb-entry
- 5106 exploit
- VU#210969 third-party-advisory
- http://www.tippingpoint.com/security/advisories/TSRT-06-15.html
- http://support.citrix.com/article/CTX111827
- http://fortconsult.net/files/fortconsult.dk/citrix_advisory_dec2006.pdf
- 1017343 vdb-entry
- http://www.citrix.com/English/SS/downloads/downloads.asp?dID=2755
- 20061207 TSRT-06-15: Citrix Presentation Server Client ActiveX Heap Overflow Vulnerability mailing-list