RealFlex RealWin 1.06/2.0/2.1 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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10.0$0-$5k0.00

A vulnerability was found in RealFlex RealWin 1.06/2.0/2.1. It has been rated as very critical. This issue affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published 04/05/2011 by Luigi Auriemma (Website). The advisory is shared at us-cert.gov. The identification of this vulnerability is CVE-2011-1563. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/21/2021).

A public exploit has been developed by Luigi Auriemma and been published before and not just after the advisory. The exploit is available at securityfocus.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11074.

The vulnerability is also documented in the vulnerability database at Exploit-DB (17025). Similar entry is available at 57006.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Luigi Auriemma
Download: 🔍

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 902528
OpenVAS Name: DATAC RealWin SCADA Server On_FC_CONNECT_FCS_a_FILE Buffer Overflow Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/datac_realwin_tag_overflow
Saint Name: DATAC RealWin SCADA Server TAG function stack overflow

MetaSploit ID: realwin_on_fc_binfile_a.rb
MetaSploit Name: DATAC RealWin SCADA Server 2 On_FC_CONNECT_FCS_a_FILE Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
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Timelineinfo

03/21/2011 🔍
03/21/2011 +0 days 🔍
03/22/2011 +1 days 🔍
03/22/2011 +0 days 🔍
04/05/2011 +13 days 🔍
04/05/2011 +0 days 🔍
04/05/2011 +0 days 🔍
04/10/2011 +5 days 🔍
03/20/2015 +1440 days 🔍
10/21/2021 +2407 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Researcher: Luigi Auriemma
Status: Confirmed

CVE: CVE-2011-1563 (🔍)
Vulnerability Center: 30957 - DATAC RealFlex RealWin 2.1 (Build 6.1.10.10) and earlier Multiple Stack-Based Buffer Overflows, High
SecurityFocus: 46937 - DATAC RealWin SCADA Server Multiple Remote Buffer Overflow Vulnerabilities
Secunia: 43848
OSVDB: 72827

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/20/2015 16:16
Updated: 10/21/2021 18:33
Changes: 03/20/2015 16:16 (63), 03/20/2017 09:37 (18), 10/21/2021 18:33 (3)
Complete: 🔍

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