VDE-2022-009

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WAGO: Multiple Products affected by Linux Kernel Vulnerability Dirty Pipe

Advisory ansehen veröffentlicht 2022-04-06

The Linux kernel starting from 5.8 has a flaw which can lead to privilege escalation for a local user. The kernel is used in several Versions of the FW of several WAGO products. All vulnerable PLCs are listed in chapter 'Affected Products'.

01

beschreibt (1)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2022-0847UShigh7.8OT kritischKEV
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux ker…
02

Referenzen

Externe Belege — Patches, Meldungen, Analysen.

03

Behebungen (2)

  • Mitigation

    - Restrict network access to the device. - Use strong passwords - Do not directly connect the device to the internet - Disable unused TCP/UDP-ports

  • Behoben

    We recommend all affected users to update to the firmware version listed below. ## Series WAGO PFC100/PFC200 and WAGO Compact Controller CC100 | Product | Fixed in Firmware Version | |----------------------|----------------------------| | 750-81xx/xxx-xxx | 03.09.04(21) | | 750-8217/xxx-xxx | 03.09.05(21) | | 750-82xx/xxx-xxx | 03.09.04(21) | | 751-9301 | 03.09.04(21) | ## Series WAGO Touch Panel 600 and WAGO Edge Controller | Product | Fixed in Firmware Version | |----------------------|----------------------------| | 762-4xxx | 03.07.19(19) | | 762-5xxx | 03.07.19(19) | | 762-6xxx | 03.07.19(19) | | 752-8303/8000-002 | 03.07.19(19) |

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