Siemens SIMATIC HMI panel memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Siemens SIMATIC HMI panel. This affects an unknown function. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2011-4875. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Siemens SIMATIC HMI panel (SCADA Software) (version now known). It has been rated as critical. This issue affects some unknown processing. 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:

Stack-based buffer overflow in HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime, when Transfer Mode is enabled, allows remote attackers to execute arbitrary code via vectors related to Unicode strings.

The weakness was released 02/03/2012 by Luigi Auriemma (Website). The advisory is shared at us-cert.gov. The identification of this vulnerability is CVE-2011-4875 since 12/21/2011. 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.

A public exploit has been developed by Luigi Auriemma and been published even before and not after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 67 days. During that time the estimated underground price was around $25k-$100k.

The vulnerability is also documented in the databases at X-Force (71449), Exploit-DB (18166), SecurityFocus (BID 50828†) and OSVDB (77380†). Entries connected to this vulnerability are available at VDB-60105, VDB-60104, VDB-60103 and VDB-60102. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Luigi Auriemma
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/28/2011 🔍
11/28/2011 +0 days 🔍
11/28/2011 +0 days 🔍
12/21/2011 +23 days 🔍
02/03/2012 +44 days 🔍
02/03/2012 +0 days 🔍
03/23/2015 +1144 days 🔍
04/11/2025 +3672 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-345442
Researcher: Luigi Auriemma
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4875 (🔍)
GCVE (CVE): GCVE-0-2011-4875
GCVE (VulDB): GCVE-100-60101
X-Force: 71449 - Siemens Simatic WinCC HmiLoad.exe buffer overflow
SecurityFocus: 50828 - Siemens SIMATIC WinCC Flexible Runtime 'HmiLoad.exe' Multiple Security Vulnerabilities
OSVDB: 77380

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 04/11/2025 05:48
Changes: 03/23/2015 16:50 (54), 01/26/2018 08:14 (10), 11/29/2021 13:16 (2), 04/11/2025 05:48 (14)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!