SSA-786884

csafDEsiemens_psirt

SSA-786884: Insufficient Randomness in Session Identifier Vulnerability in SIPROTEC 5

view advisory published 2026-05-12

The SIPROTEC 5 devices do not use sufficiently random numbers to generate session identifiers. This could facilitate a brute-force attack against a valid session identifier which could allow an unauthenticated remote attacker to hijack a valid user session. The affected session identifiers are only used in a subset of the endpoints that are provided by the affected products. Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2024-54017US——
A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V11.0), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V…
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references

External citations — patches, advisories, analysis.

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remediations (43)

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