VDE-2020-027

csafDEwago_psirt

WAGO: Vulnerability in web-based authentication in WAGO 750-8XX Version <= FW07

view advisory published 2020-09-30

The Web-Based Management (WBM) of WAGOs programmable logic controller (PLC) is typically used for administration, commissioning and updates. With special crafted requests it is possible to change some special parameters without authentication.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2020-12505USmedium6.4OT elevated—
Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW07 allows an attacker to change some special parameters without authentication. This issue affects…
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references

External citations — patches, advisories, analysis.

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remediations (2)

  • Mitigation

    Mitigation Restrict network access to the device. Do not directly connect the device to the internet. Disable unused TCP/UDP ports. Disable web-based management ports 80/443 after the configuration phase

  • Fixed

    Upgrade affected devices to the latest standard firmware.

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