Traffic interception via forged LLDP link reclassification
Published Mar 24, 2025 · Updated Mar 26, 2025
Link-classification error in Open Network Foundation ONOS 2.7.0 allows remote attackers to alter routing via forged LLDP frames. ONOS link discovery accepts forged chassis and port identifiers from a host and overwrites an indirect link's classification as direct. A host attached to a legacy switch is required; corrupted topology weights reroute traffic and enable interception or communication loss.
Summary
What happened
Link-classification error in Open Network Foundation ONOS 2.7.0 allows remote attackers to alter routing via forged LLDP frames. ONOS link discovery accepts forged chassis and port identifiers from a host and overwrites an indirect link's classification as direct. A host attached to a legacy switch is required; corrupted topology weights reroute traffic and enable interception or communication loss.
The record
- CVE
- CVE-2025-29312
- Published
- Mar 24, 2025
- Updated
- Mar 26, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-670, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 24, 2025CVE publishedPublication date reported by the CVE source.
- Mar 26, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Permanent Conversion of Indirect to Direct Linksproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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