Description
Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues.
No analysis available yet.
Remediation
Vendor Solution
Upgrade to 1.3.0
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-5041-1 | cfrpki security update |
EUVD |
EUVD-2021-2036 | Any CA issuer in the RPKI can trick OctoRPKI prior to 1.3.0 into emitting an invalid VRP "MaxLength" value, causing RTR sessions to terminate. An attacker can use this to disable RPKI Origin Validation in a victim network (for example AS 13335 - Cloudflare) prior to launching a BGP hijack which during normal operations would be rejected as "RPKI invalid". Additionally, in certain deployments RTR session flapping in and of itself also could cause BGP routing churn, causing availability issues. |
Github GHSA |
GHSA-c8xp-8mf3-62h9 | OctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength values |
References
History
No history.
Status: PUBLISHED
Assigner: cloudflare
Published:
Updated: 2024-09-17T02:56:31.062Z
Reserved: 2021-09-01T00:00:00.000Z
Link: CVE-2021-3761
No data.
Status : Modified
Published: 2021-09-09T14:15:09.397
Modified: 2024-11-21T06:22:21.710
Link: CVE-2021-3761
No data.
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD
Github GHSA