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Tue, 15 Sep 2026 16:30:00 +0000
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ssvc
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Tue, 15 Sep 2026 14:30:00 +0000
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Tue, 15 Sep 2026 14:00:00 +0000
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| Description | OpenBMC's IPMI implementation, phosphor-net-ipmid, contains a logic flaw in which an unauthenticated client can force the RAKP Message 1 handler to return before it overwrites the authentication object's constructor defaults. The IPMI service then accepts a RAKP Message 3 whose HMAC is computed with the constant 20-byte 'userKey' initialized from the string '0penBmc' and an often-predictable 'bmcRandomNum'. Several downstream vendors implement phosphor-net-ipmid as their IPMI stack, such as NVIDIA and H3C. | |
| Title | OpenBMC IPMI Authentication Bypass via Default userKey and Stale Challenge Value | |
| Weaknesses | CWE-457 CWE-798 |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: runZero
Published:
Updated: 2026-09-15T14:59:11.232Z
Reserved: 2026-07-17T17:17:25.183Z
Link: CVE-2026-16141
Updated: 2026-09-15T14:59:06.110Z
Status : Received
Published: 2026-09-15T14:16:50.430
Modified: 2026-09-15T15:17:13.377
Link: CVE-2026-16141
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OpenCVE Enrichment
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