### [CVE-2011-1563](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1563)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

Multiple stack-based buffer overflows in the HMI application in DATAC RealFlex RealWin 2.1 (Build 6.1.10.10) and earlier allow remote attackers to execute arbitrary code via (1) a long username in an On_FC_CONNECT_FCS_LOGIN packet, and crafted (2) On_FC_CTAGLIST_FCS_CADDTAG, (3) On_FC_CTAGLIST_FCS_CDELTAG, (4) On_FC_CTAGLIST_FCS_ADDTAGMS, (5) On_FC_RFUSER_FCS_LOGIN, (6) unspecified "On_FC_BINFILE_FCS_*FILE", (7) On_FC_CGETTAG_FCS_GETTELEMETRY, (8) On_FC_CGETTAG_FCS_GETCHANNELTELEMETRY, (9) On_FC_CGETTAG_FCS_SETTELEMETRY, (10) On_FC_CGETTAG_FCS_SETCHANNELTELEMETRY, and (11) On_FC_SCRIPT_FCS_STARTPROG packets to port 910.

### POC

#### Reference
- http://aluigi.org/adv/realwin_2-adv.txt
- http://aluigi.org/adv/realwin_3-adv.txt
- http://aluigi.org/adv/realwin_4-adv.txt
- http://aluigi.org/adv/realwin_5-adv.txt
- http://aluigi.org/adv/realwin_7-adv.txt
- http://aluigi.org/adv/realwin_8-adv.txt
- http://securityreason.com/securityalert/8176
- http://www.exploit-db.com/exploits/17025

#### Github
- https://github.com/Angelina612/CVSS-Severity-Predictor