Siemens SIMATIC HMI panel prior Mp miniweb.exe input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

A vulnerability, which was classified as critical, was found in Siemens SIMATIC HMI panel (SCADA Software). This affects an unknown part of the file miniweb.exe. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and availability. The summary by CVE is:

miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not properly handle URIs beginning with a 0xfa character, which allows remote attackers to read data from arbitrary memory locations or cause a denial of service (application crash) via a crafted POST request.

The weakness was published 02/03/2012 by Luigi Auriemma (Website). The advisory is shared at us-cert.gov. This vulnerability is uniquely identified as CVE-2011-4879 since 12/21/2011. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed by Luigi Auriemma in Python and been published even before and not after the advisory. The exploit is shared for download at securityfocus.com. It is declared as functional. 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 $5k-$25k.

Upgrading to version Mp eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (71453) and Exploit-DB (18166). Similar entries are available at 60104, 60103, 60102 and 60101.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.2
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Functional
Author: Luigi Auriemma
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103180
OpenVAS Name: Siemens SIMATIC WinCC HMI Web Server Multiple Input Validation Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC HMI panel Mp

Timelineinfo

11/28/2011 🔍
11/28/2011 +0 days 🔍
11/28/2011 +0 days 🔍
11/30/2011 +2 days 🔍
12/21/2011 +21 days 🔍
02/03/2012 +44 days 🔍
02/03/2012 +0 days 🔍
03/23/2015 +1144 days 🔍
11/29/2021 +2443 days 🔍

Sourcesinfo

Vendor: siemens.com

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

CVE: CVE-2011-4879 (🔍)
X-Force: 71453 - Siemens Simatic WinCC miniweb.exe denial of service
SecurityFocus: 50827 - MiniWeb Denial Of Service and Directory Traversal Vulnerabilities
Secunia: 46997 - Siemens SIMATIC WinCC Flexible Multiple Vulnerabilities, Moderately Critical
OSVDB: 77380

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/29/2021 13:38
Changes: 03/23/2015 16:50 (59), 01/28/2018 09:57 (17), 11/29/2021 13:38 (3)
Complete: 🔍

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