Description
A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. The application lacks proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Advantech WebAccess | Advantech WebAccess | — |
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.
Metasploit 1 module
-
Advantech WebAccess Webvrpcs Service Opcode 80061 Stack Buffer Overflow
exploit/windows/scada/advantech_webaccess_webvrpcs_bof
Exploit-DB 1
- Advantech WebAccess 8.2-2017.03.31 - Webvrpcs Service Opcode 80061 Stack Buffer Overflow (Metasploit) EDB-43340 · webapps · Dec 14, 2017 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- ICSA-17-306-02 Advantech WebAccess CISA ICS & IT advisories · Nov 2, 2017
References
- 43340 exploit
- 101685 vdb-entry
- https://ics-cert.us-cert.gov/advisories/ICSA-17-306-02