PT-2012-1979 · Siemens · Wincc V11 Runtime Advanced+9

Luigi Auriemma · Published 2012-02-03 · Updated 2017-08-29 · CVE-2011-4876

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Siemens WinCC flexible versions 2004 through 2008 Siemens WinCC V11 (aka TIA portal) Siemens TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels Siemens WinCC V11 Runtime Advanced Siemens WinCC flexible Runtime

Description The issue allows remote attackers to execute, read, create, modify, or delete arbitrary files via a .. (dot dot) in a string when Transfer Mode is enabled. This is due to a directory traversal vulnerability in HmiLoad in the runtime loader.

Recommendations For Siemens WinCC flexible versions 2004 through 2008, disable Transfer Mode to prevent exploitation. For Siemens WinCC V11 (aka TIA portal), disable Transfer Mode to prevent exploitation. For Siemens TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels, disable Transfer Mode to prevent exploitation. For Siemens WinCC V11 Runtime Advanced, disable Transfer Mode to prevent exploitation. For Siemens WinCC flexible Runtime, disable Transfer Mode to prevent exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2011-4876

Affected Products

Comfort Panels

Mp

Mobile Panels

Op

Simatic Hmi Panels

Tp

Wincc V11

Wincc V11 Runtime Advanced

Wincc Flexible

Wincc Flexible Runtime

References · 11

• 🔥 http://exploit-db.com/exploits/18166 · Exploit
• 🔥 https://exploit-db.com/exploits/18166 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2011-4876 · Security Note
• http://siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf · Vendor Advisory
• http://us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/71450 · Note
• http://us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdf · Note
• http://aluigi.org/adv/winccflex_1-adv.txt · Note
• http://secunia.com/advisories/46997 · Note
• http://us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf · Note
• http://osvdb.org/77381 · Note