Archive for category Vulnerabilities

Rewterz Threat Advisory – CVE-2016-1409 – Cisco Products IPv6 Neighbor Discovery Crafted Packet Vulnerability

Severity

High

Analysis Summary

The vulnerability is due to insufficient processing logic for crafted IPv6 packets that are sent to an affected device. An attacker could exploit this vulnerability by sending crafted IPv6 Neighbor Discovery (ND) packets to an affected device for processing. A successful exploit could allow the attacker to cause the device to stop processing IPv6 traffic, leading to a DoS condition on the device.

Impact

Denial of Service

Affected Vendors

Cisco

Remediation

Please see vendor’s advisory for more details and for the list of affected products.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160525-ipv6


Rewterz Threat Advisory – CVE-2019-10935 – Siemens SIMATIC WinCC and PCS7 Denial of Service Vulnerability

Severity

Medium

Analysis Summary

The SIMATIC WinCC DataMonitor web application of the affected products allows an authenticated user with network access to the WinCC DataMonitor application to upload arbitrary ASPX code.
Successful exploitation requires no user interaction and may impact the confidentiality, integrity, and availability of the affected device. The vulnerability is relevant only in situations where an attacker has access via the web interface but not to the directory structure.

Impact

Denial of service

Affected Vendors

Siemens

Affected Products

  • SIMATIC PCS 7 v8.0: all versions
  • SIMATIC PCS 7 v8.1: all versions prior to v8.1 with WinCC v7.3 Upd 19
  • SIMATIC PCS 7 v8.2: all versions prior to v8.2 SP1 with WinCC v7.4 SP1 Upd 11
  • SIMATIC PCS 7 v9.0: all versions prior to v9.0 SP2 with WinCC v7.4 SP1 Upd 11
  • SIMATIC WinCC Professional (TIA Portal v13): all versions
  • SIMATIC WinCC Professional (TIA Portal v14): all versions
  • SIMATIC WinCC Professional (TIA Portal v15): all versions
  • SIMATIC WinCC Runtime Professional v13: all versions
  • SIMATIC WinCC Runtime Professional v14: all versions prior to v14 SP1 Upd 8

Remediation

Update to version:

SIMATIC PCS7 v8.2: Update WinCC to v7.4 SP1 Upd 11
SIMATIC PCS7 v9.0: Update WinCC to v7.4 SP1 Upd 11
SIMATIC WinCC v7.4: Update WinCC to v7.4 SP1 Upd 11
SIMATIC WinCC v7.5: Update WinCC to v7.5 Upd 3
SIMATIC WinCC v7.3: Update WinCC to v7.3 Upd 19
SIMATIC PCS7 v8.1: Update WinCC to v7.3 Upd 19
SIMATIC WinCC Runtime Professional v14: Update to v14 SP1 Upd 8


Rewterz Threat Advisory – CVE-2017-9765 – OSIsoft PI SQL Client Privilege Escalation Vulnerability

Severity

High

Analysis Summary

An attacker could exploit this vulnerability in a third-party component to remotely execute code on the client computer with the same permissions as the PI SQL Client user.

Communication with a malicious PI SQL Data Access Server (RTQP Engine) is needed to expose a PI SQL client to this vulnerability.

Impact

Privilege access

Affected Vendors

OSIsoft LLC

Affected Products

PI SQL Client 2018 (PI SQL Client OLEDB 2018)

Remediation

OSIsoft recommends users upgrade to PI SQL Client 2018 R2 or later to resolve this issue.


Rewterz Threat Advisory – CVE-2019-10937 – Siemens SIMATIC TDC CP51M1 Denial of Service Vulnerability

Severity

Medium

Analysis Summary

An attacker sending a specially crafted UDP packet to the device may affect the UDP communication, causing a denial-of-service condition.

Impact

Denial of service

Affected Vendors

Siemens

Affected Products

SIMATIC TDC CP51M1: All versions prior to 1.1.7

Remediation

Siemens recommends users update to Version 1.1.7 or later.

https://support.industry.siemens.com/cs/ww/en/view/27049282


Rewterz Threat Advisory – CVE-2019-13923 – Siemens IE-WSN-PA Link WirelessHART Gateway Multiple Vulnerabilities

Severity

Medium

Analysis summary

An attacker sending a malicious link to an unsuspecting user may be able to execute a cross-site scripting attack, which may allow information disclosure, code execution, or denial-of-service.

Impact

  • Information disclosure
  • Denial of service

Affected Vendors

Siemens

Affected Products

IE/WSN-PA Link WirelessHART Gateway all versions

Remediation

Siemens has identified the following specific workarounds and mitigations that users can apply to reduce the risk:

  • Only access links from trusted sources in the browser used to configure IE/WSN-PA Link.


Rewterz Threat Advisory – Siemens Industrial Products Multiple Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2019-11477

The kernel is affected by an integer overflow when handling TCP Selective Acknowledgements, which could allow a remote attacker to cause a denial-of-service condition.

CVE-2019-11478

A remote attacker sending specially crafted TCP Selective Acknowledgment (SACK) sequences may cause a denial-of-service condition.

CVE-2019-11479

An attacker may exploit a vulnerability in the TCP retransmission queue implementation kernel when handling TCP Selective Acknowledgements (SACK) to cause a denial-of-service condition.

Impact

Denial of service

Affected Vendors

Siemens

Affected Products

  • CM 1542-1: All versions
  • CP 1242-7: All versions
  • CP 1243-1: All versions
  • CP 1243-7 LTE EU: All versions
  • CP 1243-7 LTE US: All versions
  • CP 1243-8 IRC: All versions
  • CP 1542SP-1: All versions
  • CP 1542SP-1 IRC: All versions
  • CP 1543-1: All versions
  • CP 1543SP-1: All versions
  • CloudConnect 712: All versions prior to 1.1.5
  • ROX II: All versions (Only vulnerable to CVE-2019-11479)
  • RUGGEDCOM RM1224: All versions
  • S7-1500 CPU 1518(F)-4 PN/DP MFP: All versions
  • SCALANCE M800: All versions
  • SCALANCE M875: All versions
  • SCALANCE S615: All versions
  • SCALANCE SC-600: All versions prior to 2.0.1
  • SCALANCE W-700 (IEEE 802.11n): All versions
  • SCALANCE W1700: All versions
  • SCALANCE WLC711: All versions
  • SCALANCE WLC712: All versions
  • SIMATIC ITC1500: All versions
  • SIMATIC ITC1500 PRO: All versions
  • SIMATIC ITC1900: All versions
  • SIMATIC ITC1900 PRO: All versions
  • SIMATIC ITC2200: All versions
  • SIMATIC ITC2200 PRO: All versions
  • SIMATIC MV500: All versions
  • SIMATIC RF166C: All versions
  • SIMATIC RF185C: All versions
  • SIMATIC RF186C: All versions
  • SIMATIC RF186CI: All versions
  • SIMATIC RF188C: All versions
  • SIMATIC RF188CI: All versions
  • SIMATIC RF600R: All versions
  • SIMATIC Teleserver Adapter IE Advanced: All versions
  • SIMATIC Teleserver Adapter IE Basic: All versions
  • SINEMA Remote Connect Server: All versions prior to 2.0 SP1
  • SINUMERIK 808D: All versions
  • SINUMERIK 828D: All versions
  • SINUMERIK 840D sl: All versions
  • TIM 1531 IRC: All versions

Remediation

Please see vendor’s advisory for the list of updated patches

https://www.us-cert.gov/ics/advisories/icsa-19-253-03


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